diff --git a/src/platform/packages/shared/kbn-esql-ast/scripts/functions.ts b/src/platform/packages/shared/kbn-esql-ast/scripts/functions.ts
index 8291646a98404..3eb7f67f63735 100644
--- a/src/platform/packages/shared/kbn-esql-ast/scripts/functions.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/scripts/functions.ts
@@ -8,7 +8,6 @@
  */
 import type { RecursivePartial } from '@kbn/utility-types';
 import { FunctionDefinition, FunctionDefinitionTypes } from '../src/definitions/types';
-import { validateLogFunctions } from './validators';
 import {
   defaultScalarFunctionLocations,
   dateDiffSuggestions,
@@ -48,12 +47,6 @@ export const extraFunctions: FunctionDefinition[] = [
  * and, hence, won't be present in the JSON file.
  */
 export const functionEnrichments: Record<string, RecursivePartial<FunctionDefinition>> = {
-  log10: {
-    validate: validateLogFunctions,
-  },
-  log: {
-    validate: validateLogFunctions,
-  },
   date_diff: {
     signatures: [
       {
diff --git a/src/platform/packages/shared/kbn-esql-ast/scripts/generate_function_definitions.ts b/src/platform/packages/shared/kbn-esql-ast/scripts/generate_function_definitions.ts
index d404c76048cd9..60f0de09db83c 100644
--- a/src/platform/packages/shared/kbn-esql-ast/scripts/generate_function_definitions.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/scripts/generate_function_definitions.ts
@@ -18,7 +18,6 @@ import {
 } from '../src/definitions/types';
 import { Location } from '../src/commands_registry/types';
 import { FULL_TEXT_SEARCH_FUNCTIONS } from '../src/definitions/constants';
-import { mathValidators } from './validators';
 import {
   aliasTable,
   aliases,
@@ -149,7 +148,6 @@ const enrichGrouping = (
 const enrichOperators = (
   operatorsFunctionDefinitions: FunctionDefinition[]
 ): FunctionDefinition[] => {
-  // @ts-expect-error Stringified version of the validator function
   return operatorsFunctionDefinitions.map((op) => {
     const isMathOperator = MATH_OPERATORS.includes(op.name);
     const isComparisonOperator = COMPARISON_OPERATORS.includes(op.name);
@@ -231,7 +229,6 @@ const enrichOperators = (
       // so we are overriding to add proper support
       locationsAvailable,
       type: FunctionDefinitionTypes.OPERATOR,
-      validate: mathValidators[op.name],
     };
   });
 };
@@ -315,7 +312,6 @@ const ${getDefinitionName(name)}: FunctionDefinition = {
   signatures: ${JSON.stringify(signatures, null, 2)},
   locationsAvailable: [${locationsAvailable.join(', ')}],
   ${licenseField}
-  validate: ${functionDefinition.validate || 'undefined'},
   examples: ${JSON.stringify(functionDefinition.examples || [])},${
       customParametersSnippet
         ? `\ncustomParametersSnippet: ${JSON.stringify(customParametersSnippet)},`
@@ -346,17 +342,6 @@ const ${getDefinitionName(name)}: FunctionDefinition = {
 import { i18n } from '@kbn/i18n';
 import { Location } from '../../commands_registry/types';
 import { type FunctionDefinition, FunctionDefinitionTypes } from '../types';
-${
-  functionsType === FunctionDefinitionTypes.SCALAR
-    ? `import type { ESQLFunction } from '../../types';
-import { isLiteral } from '../../ast/is';;`
-    : ''
-}
-${
-  functionsType === FunctionDefinitionTypes.OPERATOR
-    ? `import { isNumericType } from '../types';`
-    : ''
-}
 
 
 
diff --git a/src/platform/packages/shared/kbn-esql-ast/scripts/validators.ts b/src/platform/packages/shared/kbn-esql-ast/scripts/validators.ts
deleted file mode 100644
index 2c46ddd910ba4..0000000000000
--- a/src/platform/packages/shared/kbn-esql-ast/scripts/validators.ts
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the "Elastic License
- * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
- * Public License v 1"; you may not use this file except in compliance with, at
- * your election, the "Elastic License 2.0", the "GNU Affero General Public
- * License v3.0 only", or the "Server Side Public License, v 1".
- */
-
-export const validateLogFunctions = `(fnDef: ESQLFunction) => {
-  const messages = [];
-  // do not really care here about the base and field
-  // just need to check both values are not negative
-  for (const arg of fnDef.args) {
-    if (isLiteral(arg) && Number(arg.value) < 0) {
-      messages.push({
-        type: 'warning' as const,
-        code: 'logOfNegativeValue',
-        text: i18n.translate(
-          'kbn-esql-ast.esql.divide.warning.logOfNegativeValue',
-          {
-            defaultMessage: 'Log of a negative number results in null: {value}',
-            values: {
-              value: arg.value,
-            },
-          }
-        ),
-        location: arg.location,
-      });
-    }
-  }
-  return messages;
-}`;
-
-export const mathValidators: Record<string, string> = {
-  div: `(fnDef) => {
-    const [left, right] = fnDef.args;
-    const messages = [];
-    if (!Array.isArray(left) && !Array.isArray(right)) {
-      if (right.type === 'literal' && isNumericType(right.literalType)) {
-        if (right.value === 0) {
-          messages.push({
-            type: 'warning' as const,
-            code: 'divideByZero',
-            text: i18n.translate(
-              'kbn-esql-ast.esql.divide.warning.divideByZero',
-              {
-                defaultMessage: 'Cannot divide by zero: {left}/{right}',
-                values: {
-                  left: left.text,
-                  right: right.value,
-                },
-              }
-            ),
-            location: fnDef.location,
-          });
-        }
-      }
-    }
-    return messages;
-  }`,
-  mod: `(fnDef) => {
-    const [left, right] = fnDef.args;
-    const messages = [];
-    if (!Array.isArray(left) && !Array.isArray(right)) {
-      if (right.type === 'literal' && isNumericType(right.literalType)) {
-        if (right.value === 0) {
-          messages.push({
-            type: 'warning' as const,
-            code: 'moduleByZero',
-            text: i18n.translate(
-              'kbn-esql-ast.esql.divide.warning.zeroModule',
-              {
-                defaultMessage: 'Module by zero can return null value: {left}%{right}',
-                values: {
-                  left: left.text,
-                  right: right.value,
-                },
-              }
-            ),
-            location: fnDef.location,
-          });
-        }
-      }
-    }
-    return messages;
-  }`,
-};
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.test.ts b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.test.ts
index d1a3d51c5bfed..8fbf4dbf06961 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.test.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.test.ts
@@ -67,9 +67,6 @@ describe('ENRICH Validation', () => {
     enrichExpectErrors('from a_index | enrich `this``is fine`', ['Unknown policy [`this``is]']);
     enrichExpectErrors('from a_index | enrich this is fine', ['Unknown policy [this]']);
     enrichExpectErrors(`from a_index |enrich missing-policy `, ['Unknown policy [missing-policy]']);
-    enrichExpectErrors('from a_index | enrich my-pol*', [
-      'Using wildcards (*) in ENRICH is not allowed [my-pol*]',
-    ]);
   });
 
   test('validates the columns', () => {
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.ts b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.ts
index 89c65d4355ac4..2fc375fe8bdb1 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/enrich/validate.ts
@@ -12,10 +12,6 @@ import { ENRICH_MODES } from './util';
 import type { ESQLPolicy, ICommandContext, ICommandCallbacks } from '../../types';
 import { validateCommandArguments } from '../../../definitions/utils/validation';
 
-function hasWildcard(name: string) {
-  return /\*/.test(name);
-}
-
 export const validate = (
   command: ESQLCommand,
   ast: ESQLAst,
@@ -28,24 +24,14 @@ export const validate = (
   const index = source.index;
   const policies = context?.policies || new Map<string, ESQLPolicy>();
 
-  if (index) {
-    if (hasWildcard(index.valueUnquoted)) {
-      messages.push(
-        getMessageFromId({
-          messageId: 'wildcardNotSupportedForCommand',
-          values: { command: 'ENRICH', value: index.valueUnquoted },
-          locations: index.location,
-        })
-      );
-    } else if (!policies.has(index.valueUnquoted)) {
-      messages.push(
-        getMessageFromId({
-          messageId: 'unknownPolicy',
-          values: { name: index.valueUnquoted },
-          locations: index.location,
-        })
-      );
-    }
+  if (index && !policies.has(index.valueUnquoted)) {
+    messages.push(
+      getMessageFromId({
+        messageId: 'unknownPolicy',
+        values: { name: index.valueUnquoted },
+        locations: index.location,
+      })
+    );
   }
 
   if (cluster) {
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/eval/validate.test.ts b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/eval/validate.test.ts
index dd58042cdaede..8aecf610ae3cc 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/eval/validate.test.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/eval/validate.test.ts
@@ -118,201 +118,6 @@ describe('EVAL Validation', () => {
     }
   });
 
-  test('warnings when log is used', () => {
-    evalExpectErrors('from a_index | eval log10(-1)', [
-      'Log of a negative number results in null: -1',
-    ]);
-    evalExpectErrors('from a_index | eval log(-1)', [
-      'Log of a negative number results in null: -1',
-    ]);
-    evalExpectErrors('from a_index | eval log(-1, 20)', [
-      'Log of a negative number results in null: -1',
-    ]);
-    evalExpectErrors('from a_index | eval log(-1, -20)', [
-      'Log of a negative number results in null: -1',
-      'Log of a negative number results in null: -20',
-    ]);
-    evalExpectErrors('from a_index | eval col0 = log(-1, -20)', [
-      'Log of a negative number results in null: -1',
-      'Log of a negative number results in null: -20',
-    ]);
-  });
-
-  test('validates operators', () => {
-    for (const op of ['>', '>=', '<', '<=', '==', '!=']) {
-      evalExpectErrors(`from a_index | eval doubleField ${op} 0`, []);
-      evalExpectErrors(`from a_index | eval NOT doubleField ${op} 0`, []);
-      evalExpectErrors(`from a_index | eval (doubleField ${op} 0)`, []);
-      evalExpectErrors(`from a_index | eval (NOT (doubleField ${op} 0))`, []);
-      evalExpectErrors(`from a_index | eval 1 ${op} 0`, []);
-      for (const type of ['text', 'double', 'date', 'boolean', 'ip']) {
-        if (type === 'boolean') {
-          evalExpectErrors(
-            `from a_index | eval ${type}Field ${op} ${type}Field`,
-            type !== 'boolean' || ['==', '!='].includes(op)
-              ? []
-              : [
-                  `Argument of [${op}] must be [date], found value [${type}Field] type [${type}]`,
-                  `Argument of [${op}] must be [date], found value [${type}Field] type [${type}]`,
-                ]
-          );
-        } else {
-          evalExpectErrors(
-            `from a_index | eval ${type}Field ${op} ${type}Field`,
-            type !== 'boolean' || ['==', '!='].includes(op)
-              ? []
-              : [
-                  `Argument of [${op}] must be [double], found value [${type}Field] type [${type}]`,
-                  `Argument of [${op}] must be [double], found value [${type}Field] type [${type}]`,
-                ]
-          );
-        }
-      }
-      // Implicit casting of literal values tests
-      evalExpectErrors(`from a_index | eval doubleField ${op} textField`, [
-        `Argument of [${op}] must be [double], found value [textField] type [text]`,
-      ]);
-      evalExpectErrors(`from a_index | eval keywordField ${op} doubleField`, [
-        `Argument of [${op}] must be [double], found value [keywordField] type [keyword]`,
-      ]);
-      evalExpectErrors(`from a_index | eval doubleField ${op} "2022"`, [
-        op === '==' || op === '!='
-          ? `Argument of [${op}] must be [boolean], found value [doubleField] type [double]`
-          : `Argument of [${op}] must be [date], found value [doubleField] type [double]`,
-      ]);
-
-      evalExpectErrors(`from a_index | eval dateField ${op} keywordField`, [
-        `Argument of [${op}] must be [date], found value [keywordField] type [keyword]`,
-      ]);
-      evalExpectErrors(`from a_index | eval keywordField ${op} dateField`, [
-        `Argument of [${op}] must be [date], found value [keywordField] type [keyword]`,
-      ]);
-
-      // Check that the implicit cast doesn't apply for fields
-      evalExpectErrors(`from a_index | eval textField ${op} 0`, [
-        `Argument of [${op}] must be [double], found value [textField] type [text]`,
-      ]);
-      evalExpectErrors(`from a_index | eval textField ${op} now()`, [
-        `Argument of [${op}] must be [date], found value [textField] type [text]`,
-      ]);
-
-      evalExpectErrors(`from a_index | eval dateField ${op} "2022"`, []);
-      evalExpectErrors(`from a_index | eval "2022" ${op} dateField`, []);
-
-      evalExpectErrors(`from a_index | eval versionField ${op} "1.2.3"`, []);
-      evalExpectErrors(`from a_index | eval "1.2.3" ${op} versionField`, []);
-
-      evalExpectErrors(
-        `from a_index | eval booleanField ${op} "true"`,
-        ['==', '!='].includes(op)
-          ? []
-          : [`Argument of [${op}] must be [date], found value [booleanField] type [boolean]`]
-      );
-      evalExpectErrors(
-        `from a_index | eval "true" ${op} booleanField`,
-        ['==', '!='].includes(op)
-          ? []
-          : [`Argument of [${op}] must be [date], found value [booleanField] type [boolean]`]
-      );
-
-      evalExpectErrors(`from a_index | eval ipField ${op} "136.36.3.205"`, []);
-      evalExpectErrors(`from a_index | eval "136.36.3.205" ${op} ipField`, []);
-    }
-    // casting for IN for version, date, boolean, ip
-    evalExpectErrors(
-      'from a_index | eval versionField in ("1.2.3", "4.5.6", to_version("2.3.2"))',
-      []
-    );
-    evalExpectErrors(
-      'from a_index | eval dateField in ("2023-12-12", "2024-12-12", date_parse("yyyy-MM-dd", "2025-12-12"))',
-      []
-    );
-    evalExpectErrors('from a_index | eval booleanField in ("true", "false", false)', []);
-    evalExpectErrors(
-      'from a_index | eval ipField in ("136.36.3.205", "136.36.3.206", to_ip("136.36.3.207"))',
-      []
-    );
-
-    for (const op of ['+', '-', '*', '/', '%']) {
-      evalExpectErrors(`from a_index | eval doubleField ${op} 1`, []);
-      evalExpectErrors(`from a_index | eval (doubleField ${op} 1)`, []);
-      evalExpectErrors(`from a_index | eval 1 ${op} 1`, []);
-      evalExpectErrors(
-        `from a_index | eval now() ${op} now()`,
-        ['+', '-'].includes(op)
-          ? [`Argument of [${op}] must be [date_period], found value [now()] type [date]`]
-          : [
-              `Argument of [${op}] must be [double], found value [now()] type [date]`,
-              `Argument of [${op}] must be [double], found value [now()] type [date]`,
-            ]
-      );
-
-      evalExpectErrors(
-        `from a_index | eval 1 ${op} "1"`,
-        ['+', '-'].includes(op)
-          ? [`Argument of [${op}] must be [date], found value [1] type [integer]`]
-          : [`Argument of [${op}] must be [double], found value [\"1\"] type [keyword]`]
-      );
-      evalExpectErrors(
-        `from a_index | eval "1" ${op} 1`,
-        ['+', '-'].includes(op)
-          ? [`Argument of [${op}] must be [date_period], found value [1] type [integer]`]
-          : [`Argument of [${op}] must be [double], found value [\"1\"] type [keyword]`]
-      );
-      // TODO: enable when https://github.com/elastic/elasticsearch/issues/108432 is complete
-      // evalExpectErrors(`from a_index | eval "2022" ${op} 1 day`, []);
-    }
-    for (const divideByZeroExpr of ['1/0', 'col0 = 1/0', '1 + 1/0']) {
-      evalExpectErrors(`from a_index | eval ${divideByZeroExpr}`, ['Cannot divide by zero: 1/0']);
-    }
-    for (const divideByZeroExpr of ['1%0', 'col0 = 1%0', '1 + 1%0']) {
-      evalExpectErrors(`from a_index | eval ${divideByZeroExpr}`, [
-        'Module by zero can return null value: 1%0',
-      ]);
-    }
-    for (const op of ['like', 'rlike']) {
-      evalExpectErrors(`from a_index | eval textField ${op} "?a"`, []);
-      evalExpectErrors(`from a_index | eval textField NOT ${op} "?a"`, []);
-      evalExpectErrors(`from a_index | eval NOT textField ${op} "?a"`, []);
-      evalExpectErrors(`from a_index | eval NOT textField NOT ${op} "?a"`, []);
-      evalExpectErrors(`from a_index | eval doubleField ${op} "?a"`, [
-        `Argument of [${op}] must be [keyword], found value [doubleField] type [double]`,
-      ]);
-      evalExpectErrors(`from a_index | eval doubleField NOT ${op} "?a"`, [
-        `Argument of [not ${op}] must be [keyword], found value [doubleField] type [double]`,
-      ]);
-      evalExpectErrors(`from a_index | eval NOT doubleField ${op} "?a"`, [
-        `Argument of [${op}] must be [keyword], found value [doubleField] type [double]`,
-      ]);
-      evalExpectErrors(`from a_index | eval NOT doubleField NOT ${op} "?a"`, [
-        `Argument of [not ${op}] must be [keyword], found value [doubleField] type [double]`,
-      ]);
-    }
-
-    // test lists
-    evalExpectErrors('from a_index | eval 1 in (1, 2, 3)', []);
-    evalExpectErrors('from a_index | eval doubleField in (1, 2, 3)', []);
-    evalExpectErrors('from a_index | eval doubleField not in (1, 2, 3)', []);
-    evalExpectErrors('from a_index | eval doubleField not in (1, 2, 3, doubleField)', []);
-    evalExpectErrors('from a_index | eval 1 in (1, 2, 3, round(doubleField))', []);
-    evalExpectErrors('from a_index | eval "a" in ("a", "b", "c")', []);
-    evalExpectErrors('from a_index | eval textField in ("a", "b", "c")', []);
-    evalExpectErrors('from a_index | eval textField not in ("a", "b", "c")', []);
-    evalExpectErrors('from a_index | eval textField not in ("a", "b", "c", textField)', []);
-    evalExpectErrors('from a_index | eval 1 in ("a", "b", "c")', [
-      'Argument of [in] must be [integer[]], found value [("a", "b", "c")] type [(keyword, keyword, keyword)]',
-    ]);
-    evalExpectErrors('from a_index | eval doubleField in ("a", "b", "c")', [
-      // 'Argument of [in] must be [number[]], found value [("a", "b", "c")] type [(string, string, string)]',
-    ]);
-    evalExpectErrors('from a_index | eval doubleField not in ("a", "b", "c")', [
-      // 'Argument of [not_in] must be [number[]], found value [("a", "b", "c")] type [(string, string, string)]',
-    ]);
-    evalExpectErrors('from a_index | eval doubleField not in (1, 2, 3, textField)', [
-      // 'Argument of [not_in] must be [number[]], found value [(1, 2, 3, textField)] type [(number, number, number, string)]',
-    ]);
-  });
-
   test('rest validations', () => {
     const newUserDefinedColumns = new Map(mockContext.userDefinedColumns);
     newUserDefinedColumns.set('avg(doubleField)', [
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.test.ts b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.test.ts
index 1b1475d282839..ba5d764d9e923 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.test.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.test.ts
@@ -84,43 +84,6 @@ describe('STATS Validation', () => {
         }
       });
 
-      test('errors on agg and non-agg mix', () => {
-        statsExpectErrors('from a_index | STATS sum( doubleField ) + abs( doubleField ) ', [
-          'Cannot combine aggregation and non-aggregation values in [STATS], found [sum(doubleField)+abs(doubleField)]',
-        ]);
-        statsExpectErrors('from a_index | STATS abs( doubleField + sum( doubleField )) ', [
-          'Cannot combine aggregation and non-aggregation values in [STATS], found [abs(doubleField+sum(doubleField))]',
-        ]);
-        // This is a valid expression as it is an operation on two aggregation functions
-        statsExpectErrors(
-          'from a_index | STATS sum(doubleField) / (min(doubleField) + max(doubleField))  ',
-          []
-        );
-      });
-
-      test('errors on each aggregation field, which does not contain at least one agg function', () => {
-        statsExpectErrors('from a_index | stats doubleField + 1', [
-          'At least one aggregation function required in [STATS], found [doubleField+1]',
-        ]);
-        statsExpectErrors('from a_index | stats doubleField + 1, textField', [
-          'At least one aggregation function required in [STATS], found [doubleField+1]',
-          'Expected an aggregate function or group but got [textField] of type [FieldAttribute]',
-        ]);
-        statsExpectErrors('from a_index | stats doubleField + 1, doubleField + 2, count()', [
-          'At least one aggregation function required in [STATS], found [doubleField+1]',
-          'At least one aggregation function required in [STATS], found [doubleField+2]',
-        ]);
-        statsExpectErrors('from a_index | stats doubleField + 1, doubleField + count(), count()', [
-          'At least one aggregation function required in [STATS], found [doubleField+1]',
-        ]);
-        statsExpectErrors('from a_index | stats 5 + doubleField + 1', [
-          'At least one aggregation function required in [STATS], found [5+doubleField+1]',
-        ]);
-        statsExpectErrors('from a_index | stats doubleField + 1 by ipField', [
-          'At least one aggregation function required in [STATS], found [doubleField+1]',
-        ]);
-      });
-
       test('errors when input is not an aggregate function', () => {
         statsExpectErrors('from a_index | stats doubleField ', [
           'Expected an aggregate function or group but got [doubleField] of type [FieldAttribute]',
@@ -142,15 +105,6 @@ describe('STATS Validation', () => {
         ]);
       });
 
-      test('semantic errors', () => {
-        statsExpectErrors('from a_index | stats count(round(*))', [
-          'Using wildcards (*) in round is not allowed',
-        ]);
-        statsExpectErrors('from a_index | stats count(count(*))', [
-          `Aggregate function's parameters must be an attribute, literal or a non-aggregation function; found [count(*)] of type [long]`,
-        ]);
-      });
-
       test('allows WHERE clause', () => {
         statsExpectErrors('FROM a_index | STATS col0 = avg(doubleField) WHERE 123', []);
       });
@@ -179,15 +133,6 @@ describe('STATS Validation', () => {
         }
       });
 
-      test('semantic errors in <aggregates>', () => {
-        statsExpectErrors('from a_index | stats count(round(*)) BY ipField', [
-          'Using wildcards (*) in round is not allowed',
-        ]);
-        statsExpectErrors('from a_index | stats count(count(*)) BY ipField', [
-          `Aggregate function's parameters must be an attribute, literal or a non-aggregation function; found [count(*)] of type [long]`,
-        ]);
-      });
-
       test('various errors', () => {
         statsExpectErrors('from a_index | stats avg(doubleField) by percentile(doubleField)', [
           'STATS BY does not support function percentile',
@@ -252,21 +197,6 @@ describe('STATS Validation', () => {
                 []
               );
             });
-
-            test('errors', () => {
-              statsExpectErrors(`from a_index | stats 5 ${operatorsWrapping} + doubleField`, [
-                `At least one aggregation function required in [STATS], found [5${operatorsWrapping}+doubleField]`,
-              ]);
-              statsExpectErrors(`from a_index | stats 5 + doubleField ${operatorsWrapping}`, [
-                `At least one aggregation function required in [STATS], found [5+doubleField${operatorsWrapping}]`,
-              ]);
-              statsExpectErrors(
-                `from a_index | stats 5 + doubleField ${operatorsWrapping}, col0 = sum(doubleField)`,
-                [
-                  `At least one aggregation function required in [STATS], found [5+doubleField${operatorsWrapping}]`,
-                ]
-              );
-            });
           });
 
           describe('EVAL', () => {
@@ -303,27 +233,6 @@ describe('STATS Validation', () => {
                 []
               );
             });
-
-            test('errors', () => {
-              statsExpectErrors(
-                `from a_index | stats ${evalWrapping} doubleField + sum(doubleField) ${closingWrapping}`,
-                [
-                  `Cannot combine aggregation and non-aggregation values in [STATS], found [${evalWrapping}doubleField+sum(doubleField)${closingWrapping}]`,
-                ]
-              );
-              statsExpectErrors(
-                `from a_index | stats ${evalWrapping} doubleField + sum(doubleField) ${closingWrapping}, col0 = sum(doubleField)`,
-                [
-                  `Cannot combine aggregation and non-aggregation values in [STATS], found [${evalWrapping}doubleField+sum(doubleField)${closingWrapping}]`,
-                ]
-              );
-              statsExpectErrors(
-                `from a_index | stats col0 = ${evalWrapping} doubleField + sum(doubleField) ${closingWrapping}, var0 = sum(doubleField)`,
-                [
-                  `Cannot combine aggregation and non-aggregation values in [STATS], found [${evalWrapping}doubleField+sum(doubleField)${closingWrapping}]`,
-                ]
-              );
-            });
           });
         });
       }
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.ts b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.ts
index e38fc7dae9991..1de05826d7850 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/commands_registry/commands/stats/validate.ts
@@ -6,12 +6,9 @@
  * your election, the "Elastic License 2.0", the "GNU Affero General Public
  * License v3.0 only", or the "Server Side Public License, v 1".
  */
-import { i18n } from '@kbn/i18n';
-import type { ESQLCommand, ESQLMessage, ESQLFunction, ESQLAst } from '../../../types';
+import type { ESQLCommand, ESQLMessage, ESQLAst } from '../../../types';
 import { validateCommandArguments } from '../../../definitions/utils/validation';
 import { ICommandContext, ICommandCallbacks } from '../../types';
-import { isFunctionExpression, isWhereExpression, isAssignment } from '../../../ast/is';
-import { checkAggExistence, checkFunctionContent } from './utils';
 
 export const validate = (
   command: ESQLCommand,
@@ -20,80 +17,6 @@ export const validate = (
   callbacks?: ICommandCallbacks
 ): ESQLMessage[] => {
   const messages: ESQLMessage[] = [];
-  const commandName = command.name.toUpperCase();
-  if (!command.args.length) {
-    messages.push({
-      location: command.location,
-      text: i18n.translate('kbn-esql-ast.esql.validation.statsNoArguments', {
-        defaultMessage:
-          'At least one aggregation or grouping expression required in [{commandName}]',
-        values: { commandName },
-      }),
-      type: 'error',
-      code: 'statsNoArguments',
-    });
-  }
-
-  // now that all functions are supported, there's a specific check to perform
-  // unfortunately the logic here is a bit complex as it needs to dig deeper into the args
-  // until an agg function is detected
-  // in the long run this might be integrated into the validation function
-  const statsArg = command.args
-    .flatMap((arg) => {
-      if (isWhereExpression(arg) && isFunctionExpression(arg.args[0])) {
-        arg = arg.args[0] as ESQLFunction;
-      }
-
-      return isAssignment(arg) ? arg.args[1] : arg;
-    })
-    .filter(isFunctionExpression);
-
-  if (statsArg.length) {
-    // first check: is there an agg function somewhere?
-    const noAggsExpressions = statsArg.filter((arg) => !checkAggExistence(arg));
-
-    if (noAggsExpressions.length) {
-      messages.push(
-        ...noAggsExpressions.map((fn) => ({
-          location: fn.location,
-          text: i18n.translate('kbn-esql-ast.esql.validation.statsNoAggFunction', {
-            defaultMessage:
-              'At least one aggregation function required in [{commandName}], found [{expression}]',
-            values: {
-              expression: fn.text,
-              commandName,
-            },
-          }),
-          type: 'error' as const,
-          code: 'statsNoAggFunction',
-        }))
-      );
-    } else {
-      // @TODO: improve here the check to get the last instance of the invalidExpression
-      // to provide a better location for the error message
-      // i.e. STATS round(round(round( a + sum(b) )))
-      // should return the location of the + node, just before the agg one
-      const invalidExpressions = statsArg.filter((arg) => !checkFunctionContent(arg));
-
-      if (invalidExpressions.length) {
-        messages.push(
-          ...invalidExpressions.map((fn) => ({
-            location: fn.location,
-            text: i18n.translate('kbn-esql-ast.esql.validation.noCombinationOfAggAndNonAggValues', {
-              defaultMessage:
-                'Cannot combine aggregation and non-aggregation values in [{commandName}], found [{expression}]',
-              values: {
-                expression: fn.text,
-                commandName,
-              },
-            }),
-            type: 'error' as const,
-            code: 'statsNoCombinationOfAggAndNonAggValues',
-          }))
-        );
-      }
-    }
-  }
 
   messages.push(...validateCommandArguments(command, ast, context, callbacks));
 
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/constants.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/constants.ts
index 2a32f806dace1..2de19c0406fc1 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/constants.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/constants.ts
@@ -144,17 +144,3 @@ export const timeUnits: string[] = [
 ];
 
 export const FULL_TEXT_SEARCH_FUNCTIONS = ['match', 'match_operator', 'qstr', 'kql'];
-export const UNSUPPORTED_COMMANDS_BEFORE_QSTR = new Set([
-  'show',
-  'row',
-  'dissect',
-  'enrich',
-  'eval',
-  'grok',
-  'keep',
-  'mv_expand',
-  'rename',
-  'stats',
-  'limit',
-]);
-export const UNSUPPORTED_COMMANDS_BEFORE_MATCH = new Set(['limit']);
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/aggregation_functions.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/aggregation_functions.ts
index c5d462aa6677e..718fea84f0a22 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/aggregation_functions.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/aggregation_functions.ts
@@ -72,7 +72,6 @@ const avgDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS AVG(height)',
     'FROM employees\n| STATS avg_salary_change = ROUND(AVG(MV_AVG(salary_change)), 10)',
@@ -242,7 +241,6 @@ const countDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS COUNT(height)',
     'FROM employees\n| STATS count = COUNT(*) BY languages\n| SORT languages DESC',
@@ -814,7 +812,6 @@ const countDistinctDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM hosts\n| STATS COUNT_DISTINCT(ip0), COUNT_DISTINCT(ip1)',
     'FROM hosts\n| STATS COUNT_DISTINCT(ip0, 80000), COUNT_DISTINCT(ip1, 5)',
@@ -944,7 +941,6 @@ const maxDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS MAX(languages)',
     'FROM employees\n| STATS max_avg_salary_change = MAX(MV_AVG(salary_change))',
@@ -994,7 +990,6 @@ const medianDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS MEDIAN(salary), PERCENTILE(salary, 50)',
     'FROM employees\n| STATS median_max_salary_change = MEDIAN(MV_MAX(salary_change))',
@@ -1044,7 +1039,6 @@ const medianAbsoluteDeviationDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS MEDIAN(salary), MEDIAN_ABSOLUTE_DEVIATION(salary)',
     'FROM employees\n| STATS m_a_d_max_salary_change = MEDIAN_ABSOLUTE_DEVIATION(MV_MAX(salary_change))',
@@ -1173,7 +1167,6 @@ const minDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS MIN(languages)',
     'FROM employees\n| STATS min_avg_salary_change = MIN(MV_AVG(salary_change))',
@@ -1337,7 +1330,6 @@ const percentileDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS p0 = PERCENTILE(salary,  0)\n     , p50 = PERCENTILE(salary, 50)\n     , p99 = PERCENTILE(salary, 99)',
     'FROM employees\n| STATS p80_max_salary_change = PERCENTILE(MV_MAX(salary_change), 80)',
@@ -1581,7 +1573,6 @@ const sampleDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: ['FROM employees\n| STATS sample = SAMPLE(gender, 5)'],
 };
 
@@ -1617,7 +1608,6 @@ const stCentroidAggDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: ['FROM airports\n| STATS centroid=ST_CENTROID_AGG(location)'],
 };
 
@@ -1676,7 +1666,6 @@ const stExtentAggDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: ['FROM airports\n| WHERE country == "India"\n| STATS extent = ST_EXTENT_AGG(location)'],
 };
 
@@ -1722,7 +1711,6 @@ const stdDevDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS STD_DEV(height)',
     'FROM employees\n| STATS stddev_salary_change = STD_DEV(MV_MAX(salary_change))',
@@ -1771,7 +1759,6 @@ const sumDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS SUM(languages)',
     'FROM employees\n| STATS total_salary_changes = SUM(MV_MAX(salary_change))',
@@ -1968,7 +1955,6 @@ const topDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS top_salaries = TOP(salary, 3, "desc"), top_salary = MAX(salary)',
   ],
@@ -2137,7 +2123,6 @@ const valuesDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| EVAL first_letter = SUBSTRING(first_name, 0, 1)\n| STATS first_name = MV_SORT(VALUES(first_name)) BY first_letter\n| SORT first_letter',
   ],
@@ -2290,7 +2275,6 @@ const weightedAvgDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS w_avg = WEIGHTED_AVG(salary, height) BY languages\n| EVAL w_avg = ROUND(w_avg)\n| KEEP w_avg, languages\n| SORT languages',
   ],
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/function_names.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/function_names.ts
index 853912a8f988c..6755238f008ee 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/function_names.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/function_names.ts
@@ -184,6 +184,7 @@ export const esqlFunctionNames = [
   'V_COSINE',
   'V_DOT_PRODUCT',
   'V_L1_NORM',
+  'V_L2_NORM',
   'VALUES',
   'WEIGHTED_AVG',
   'ADD',
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/grouping_functions.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/grouping_functions.ts
index a190ecf95e82c..d1bf97857ab76 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/grouping_functions.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/grouping_functions.ts
@@ -1511,7 +1511,6 @@ const bucketDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS, Location.STATS_BY],
-  validate: undefined,
   examples: [
     'FROM employees\n| WHERE hire_date >= "1985-01-01T00:00:00Z" AND hire_date < "1986-01-01T00:00:00Z"\n| STATS hire_date = MV_SORT(VALUES(hire_date)) BY month = BUCKET(hire_date, 20, "1985-01-01T00:00:00Z", "1986-01-01T00:00:00Z")',
     'FROM employees\n| WHERE hire_date >= "1985-01-01T00:00:00Z" AND hire_date < "1986-01-01T00:00:00Z"\n| STATS hires_per_month = COUNT(*) BY month = BUCKET(hire_date, 20, "1985-01-01T00:00:00Z", "1986-01-01T00:00:00Z")\n| SORT month',
@@ -1561,7 +1560,6 @@ const categorizeDefinition: FunctionDefinition = {
   ],
   locationsAvailable: [Location.STATS, Location.STATS_BY],
   license: 'PLATINUM',
-  validate: undefined,
   examples: ['FROM sample_data\n| STATS count=COUNT() BY category=CATEGORIZE(message)'],
 };
 export const groupingFunctionDefinitions = [bucketDefinition, categorizeDefinition];
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/operators.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/operators.ts
index 7c3809ed4ef44..3006bae98783d 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/operators.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/operators.ts
@@ -30,8 +30,6 @@ import { i18n } from '@kbn/i18n';
 import { Location } from '../../commands_registry/types';
 import { type FunctionDefinition, FunctionDefinitionTypes } from '../types';
 
-import { isNumericType } from '../types';
-
 // Do not edit this manually... generated by scripts/generate_function_definitions.ts
 const addDefinition: FunctionDefinition = {
   type: FunctionDefinitionTypes.OPERATOR,
@@ -380,7 +378,6 @@ const addDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -556,29 +553,6 @@ const divDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: (fnDef) => {
-    const [left, right] = fnDef.args;
-    const messages = [];
-    if (!Array.isArray(left) && !Array.isArray(right)) {
-      if (right.type === 'literal' && isNumericType(right.literalType)) {
-        if (right.value === 0) {
-          messages.push({
-            type: 'warning' as const,
-            code: 'divideByZero',
-            text: i18n.translate('kbn-esql-ast.esql.divide.warning.divideByZero', {
-              defaultMessage: 'Cannot divide by zero: {left}/{right}',
-              values: {
-                left: left.text,
-                right: right.value,
-              },
-            }),
-            location: fnDef.location,
-          });
-        }
-      }
-    }
-    return messages;
-  },
   examples: [],
 };
 
@@ -1035,7 +1009,6 @@ const equalsDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -1417,7 +1390,6 @@ const greaterThanDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -1799,7 +1771,6 @@ const greaterThanOrEqualDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -2047,7 +2018,6 @@ const inDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = 1, b = 4, c = 3\n| WHERE c-a IN (3, b / 2, a)'],
 };
 
@@ -2250,7 +2220,6 @@ const isNotNullDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| WHERE is_rehired IS NOT NULL\n| STATS COUNT(emp_no)'],
 };
 
@@ -2453,7 +2422,6 @@ const isNullDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| WHERE birth_date IS NULL'],
 };
 
@@ -2835,7 +2803,6 @@ const lessThanDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -3217,7 +3184,6 @@ const lessThanOrEqualDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -3273,7 +3239,6 @@ const likeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| WHERE first_name LIKE """?b*"""\n| KEEP first_name, last_name'],
 };
 
@@ -3783,7 +3748,6 @@ const matchOperatorDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.WHERE, Location.STATS_WHERE],
-  validate: undefined,
   examples: ['FROM books\n| WHERE author:"Faulkner"'],
 };
 
@@ -3959,29 +3923,6 @@ const modDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: (fnDef) => {
-    const [left, right] = fnDef.args;
-    const messages = [];
-    if (!Array.isArray(left) && !Array.isArray(right)) {
-      if (right.type === 'literal' && isNumericType(right.literalType)) {
-        if (right.value === 0) {
-          messages.push({
-            type: 'warning' as const,
-            code: 'moduleByZero',
-            text: i18n.translate('kbn-esql-ast.esql.divide.warning.zeroModule', {
-              defaultMessage: 'Module by zero can return null value: {left}%{right}',
-              values: {
-                left: left.text,
-                right: right.value,
-              },
-            }),
-            location: fnDef.location,
-          });
-        }
-      }
-    }
-    return messages;
-  },
   examples: [],
 };
 
@@ -4157,7 +4098,6 @@ const mulDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -4223,7 +4163,6 @@ const negDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS],
-  validate: undefined,
   examples: [],
 };
 
@@ -4471,7 +4410,6 @@ const notInDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -4527,7 +4465,6 @@ const notLikeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -4583,7 +4520,6 @@ const notRlikeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -5040,7 +4976,6 @@ const notEqualsDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 
@@ -5096,7 +5031,6 @@ const rlikeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| WHERE first_name RLIKE """.leja.*"""\n| KEEP first_name, last_name',
   ],
@@ -5420,7 +5354,6 @@ const subDefinition: FunctionDefinition = {
     Location.STATS_BY,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [],
 };
 export const operatorFunctionDefinitions = [
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/scalar_functions.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/scalar_functions.ts
index fd29ae7c4bac7..277c8f0112b8c 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/scalar_functions.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/scalar_functions.ts
@@ -29,8 +29,6 @@
 import { i18n } from '@kbn/i18n';
 import { Location } from '../../commands_registry/types';
 import { type FunctionDefinition, FunctionDefinitionTypes } from '../types';
-import type { ESQLFunction } from '../../types';
-import { isLiteral } from '../../ast/is';
 
 // Do not edit this manually... generated by scripts/generate_function_definitions.ts
 const absDefinition: FunctionDefinition = {
@@ -93,7 +91,6 @@ const absDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW number = -1.0\n| EVAL abs_number = ABS(number)',
     'FROM employees\n| KEEP first_name, last_name, height\n| EVAL abs_height = ABS(0.0 - height)',
@@ -161,7 +158,6 @@ const acosDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=.9\n| EVAL acos=ACOS(a)'],
 };
 
@@ -227,7 +223,6 @@ const asinDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=.9\n| EVAL asin=ASIN(a)'],
 };
 
@@ -293,7 +288,6 @@ const atanDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=12.9\n| EVAL atan=ATAN(a)'],
 };
 
@@ -559,7 +553,6 @@ const atan2Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW y=12.9, x=.6\n| EVAL atan2=ATAN2(y, x)'],
 };
 
@@ -604,7 +597,6 @@ const bitLengthDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| WHERE country == "India"\n| KEEP city\n| EVAL fn_length = LENGTH(city), fn_bit_length = BIT_LENGTH(city)',
   ],
@@ -651,7 +643,6 @@ const byteLengthDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| WHERE country == "India"\n| KEEP city\n| EVAL fn_length = LENGTH(city), fn_byte_length = BYTE_LENGTH(city)',
   ],
@@ -719,7 +710,6 @@ const cbrtDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW d = 1000.0\n| EVAL c = CBRT(d)'],
 };
 
@@ -784,7 +774,6 @@ const ceilDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL a=CEIL(a)'],
 };
 
@@ -842,7 +831,6 @@ const cidrMatchDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM hosts\n| WHERE CIDR_MATCH(ip1, "127.0.0.2/32", "127.0.0.3/32")\n| KEEP card, host, ip0, ip1',
   ],
@@ -1133,7 +1121,6 @@ const coalesceDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=null, b="b"\n| EVAL COALESCE(a, b)'],
 };
 
@@ -1222,7 +1209,6 @@ const concatDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| KEEP first_name, last_name\n| EVAL fullname = CONCAT(first_name, " ", last_name)',
   ],
@@ -1289,7 +1275,6 @@ const cosDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL cos=COS(a)'],
 };
 
@@ -1354,7 +1339,6 @@ const coshDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL cosh=COSH(a)'],
 };
 
@@ -1601,7 +1585,6 @@ const dateDiffDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW date1 = TO_DATETIME("2023-12-02T11:00:00.000Z"),\n    date2 = TO_DATETIME("2023-12-02T11:00:00.001Z")\n| EVAL dd_ms = DATE_DIFF("microseconds", date1, date2)',
     'ROW end_23 = TO_DATETIME("2023-12-31T23:59:59.999Z"),\n  start_24 = TO_DATETIME("2024-01-01T00:00:00.000Z"),\n    end_24 = TO_DATETIME("2024-12-31T23:59:59.999")\n| EVAL end23_to_start24 = DATE_DIFF("year", end_23, start_24)\n| EVAL end23_to_end24   = DATE_DIFF("year", end_23, end_24)\n| EVAL start_to_end_24  = DATE_DIFF("year", start_24, end_24)',
@@ -1721,7 +1704,6 @@ const dateExtractDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW date = DATE_PARSE("yyyy-MM-dd", "2022-05-06")\n| EVAL year = DATE_EXTRACT("year", date)',
     'FROM sample_data\n| WHERE DATE_EXTRACT("hour_of_day", @timestamp) < 9\n    AND DATE_EXTRACT("hour_of_day", @timestamp) >= 17',
@@ -1829,7 +1811,6 @@ const dateFormatDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| KEEP first_name, last_name, hire_date\n| EVAL hired = DATE_FORMAT("yyyy-MM-dd", hire_date)',
   ],
@@ -1917,7 +1898,6 @@ const dateParseDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW date_string = "2022-05-06"\n| EVAL date = DATE_PARSE("yyyy-MM-dd", date_string)'],
 };
 
@@ -2003,7 +1983,6 @@ const dateTruncDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| KEEP first_name, last_name, hire_date\n| EVAL year_hired = DATE_TRUNC(1 year, hire_date)',
     'FROM employees\n| EVAL year = DATE_TRUNC(1 year, hire_date)\n| STATS hires = COUNT(emp_no) BY year\n| SORT year',
@@ -2036,7 +2015,6 @@ const eDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW E()'],
 };
 
@@ -2122,7 +2100,6 @@ const endsWithDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| KEEP last_name\n| EVAL ln_E = ENDS_WITH(last_name, "d")'],
 };
 
@@ -2187,7 +2164,6 @@ const expDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW d = 5.0\n| EVAL s = EXP(d)'],
 };
 
@@ -2252,7 +2228,6 @@ const floorDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL a=FLOOR(a)'],
 };
 
@@ -2297,7 +2272,6 @@ const fromBase64Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = "ZWxhc3RpYw=="\n| EVAL d = FROM_BASE64(a)'],
 };
 
@@ -2538,7 +2512,6 @@ const greatestDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = 10, b = 20\n| EVAL g = GREATEST(a, b)'],
 };
 
@@ -2624,7 +2597,6 @@ const hashDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM sample_data\n| WHERE message != "Connection error"\n| EVAL md5 = hash("md5", message), sha256 = hash("sha256", message)\n| KEEP message, md5, sha256',
   ],
@@ -2892,7 +2864,6 @@ const hypotDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = 3.0, b = 4.0\n| EVAL c = HYPOT(a, b)'],
 };
 
@@ -2937,7 +2908,6 @@ const ipPrefixDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW ip4 = to_ip("1.2.3.4"), ip6 = TO_IP("fe80::cae2:65ff:fece:feb9")\n| EVAL ip4_prefix = IP_PREFIX(ip4, 24, 0), ip6_prefix = IP_PREFIX(ip6, 0, 112);',
   ],
@@ -2965,7 +2935,6 @@ const knnDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'from colors metadata _score\n| where knn(rgb_vector, [0, 120, 0], 10)\n| sort _score desc, color asc',
   ],
@@ -3006,7 +2975,6 @@ const kqlDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.WHERE, Location.STATS_WHERE],
-  validate: undefined,
   examples: ['FROM books\n| WHERE KQL("author: Faulkner")'],
   customParametersSnippet: '"""$0"""',
 };
@@ -3248,7 +3216,6 @@ const leastDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = 10, b = 20\n| EVAL l = LEAST(a, b)'],
 };
 
@@ -3304,7 +3271,6 @@ const leftDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| KEEP last_name\n| EVAL left = LEFT(last_name, 3)'],
 };
 
@@ -3349,7 +3315,6 @@ const lengthDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| WHERE country == "India"\n| KEEP city\n| EVAL fn_length = LENGTH(city)',
   ],
@@ -3517,7 +3482,6 @@ const locateDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = "hello"\n| EVAL a_ll = LOCATE(a, "ll")'],
 };
 
@@ -3823,27 +3787,6 @@ const logDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: (fnDef: ESQLFunction) => {
-    const messages = [];
-    // do not really care here about the base and field
-    // just need to check both values are not negative
-    for (const arg of fnDef.args) {
-      if (isLiteral(arg) && Number(arg.value) < 0) {
-        messages.push({
-          type: 'warning' as const,
-          code: 'logOfNegativeValue',
-          text: i18n.translate('kbn-esql-ast.esql.divide.warning.logOfNegativeValue', {
-            defaultMessage: 'Log of a negative number results in null: {value}',
-            values: {
-              value: arg.value,
-            },
-          }),
-          location: arg.location,
-        });
-      }
-    }
-    return messages;
-  },
   examples: [
     'ROW base = 2.0, value = 8.0\n| EVAL s = LOG(base, value)',
     'ROW value = 100\n| EVAL s = LOG(value);',
@@ -3912,27 +3855,6 @@ const log10Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: (fnDef: ESQLFunction) => {
-    const messages = [];
-    // do not really care here about the base and field
-    // just need to check both values are not negative
-    for (const arg of fnDef.args) {
-      if (isLiteral(arg) && Number(arg.value) < 0) {
-        messages.push({
-          type: 'warning' as const,
-          code: 'logOfNegativeValue',
-          text: i18n.translate('kbn-esql-ast.esql.divide.warning.logOfNegativeValue', {
-            defaultMessage: 'Log of a negative number results in null: {value}',
-            values: {
-              value: arg.value,
-            },
-          }),
-          location: arg.location,
-        });
-      }
-    }
-    return messages;
-  },
   examples: ['ROW d = 1000.0\n| EVAL s = LOG10(d)'],
 };
 
@@ -3977,7 +3899,6 @@ const ltrimDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW message = "   some text  ",  color = " red "\n| EVAL message = LTRIM(message)\n| EVAL color = LTRIM(color)\n| EVAL message = CONCAT("\'", message, "\'")\n| EVAL color = CONCAT("\'", color, "\'")',
   ],
@@ -4721,7 +4642,6 @@ const matchDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.WHERE, Location.STATS_WHERE],
-  validate: undefined,
   examples: [
     'FROM books\n| WHERE MATCH(author, "Faulkner")',
     'FROM books\n| WHERE MATCH(title, "Hobbit Back Again", {"operator": "AND"})\n| KEEP title;',
@@ -4794,7 +4714,6 @@ const matchPhraseDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM books\n| WHERE MATCH_PHRASE(author, "William Faulkner")'],
 };
 
@@ -4839,7 +4758,6 @@ const md5Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM sample_data\n| WHERE message != "Connection error"\n| EVAL md5 = md5(message)\n| KEEP message, md5',
   ],
@@ -5534,7 +5452,6 @@ const multiMatchDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM books\n| WHERE MULTI_MATCH("Faulkner", author, description)\n| KEEP book_no, author\n| SORT book_no\n| LIMIT 5',
     'FROM books\n| WHERE MULTI_MATCH("Hobbit Back Again", title, description, {"operator": "AND"})\n| KEEP title;',
@@ -5817,7 +5734,6 @@ const mvAppendDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| WHERE emp_no == 10039 OR emp_no == 10040\n| SORT emp_no\n| EVAL dates = MV_APPEND(birth_date, hire_date)\n| KEEP emp_no, birth_date, hire_date, dates',
   ],
@@ -5885,7 +5801,6 @@ const mvAvgDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=[3, 5, 1, 6]\n| EVAL avg_a = MV_AVG(a)'],
 };
 
@@ -5971,7 +5886,6 @@ const mvConcatDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW a=["foo", "zoo", "bar"]\n| EVAL j = MV_CONCAT(a, ", ")',
     'ROW a=[10, 9, 8]\n| EVAL j = MV_CONCAT(TO_STRING(a), ", ")',
@@ -6150,7 +6064,6 @@ const mvCountDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=["foo", "zoo", "bar"]\n| EVAL count_a = MV_COUNT(a)'],
 };
 
@@ -6325,7 +6238,6 @@ const mvDedupeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=["foo", "foo", "bar", "foo"]\n| EVAL dedupe_a = MV_DEDUPE(a)'],
 };
 
@@ -6501,7 +6413,6 @@ const mvFirstDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a="foo;bar;baz"\n| EVAL first_a = MV_FIRST(SPLIT(a, ";"))'],
 };
 
@@ -6677,7 +6588,6 @@ const mvLastDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a="foo;bar;baz"\n| EVAL last_a = MV_LAST(SPLIT(a, ";"))'],
 };
 
@@ -6813,7 +6723,6 @@ const mvMaxDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW a=[3, 5, 1]\n| EVAL max_a = MV_MAX(a)',
     'ROW a=["foo", "zoo", "bar"]\n| EVAL max_a = MV_MAX(a)',
@@ -6882,7 +6791,6 @@ const mvMedianDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW a=[3, 5, 1]\n| EVAL median_a = MV_MEDIAN(a)',
     'ROW a=[3, 7, 1, 6]\n| EVAL median_a = MV_MEDIAN(a)',
@@ -6951,7 +6859,6 @@ const mvMedianAbsoluteDeviationDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW values = [0, 2, 5, 6]\n| EVAL median_absolute_deviation = MV_MEDIAN_ABSOLUTE_DEVIATION(values), median = MV_MEDIAN(values)',
   ],
@@ -7089,7 +6996,6 @@ const mvMinDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW a=[2, 1]\n| EVAL min_a = MV_MIN(a)',
     'ROW a=["foo", "bar"]\n| EVAL min_a = MV_MIN(a)',
@@ -7253,7 +7159,6 @@ const mvPercentileDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW values = [5, 5, 10, 12, 5000]\n| EVAL p50 = MV_PERCENTILE(values, 50), median = MV_MEDIAN(values)',
   ],
@@ -7296,7 +7201,6 @@ const mvPseriesWeightedSumDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW a = [70.0, 45.0, 21.0, 21.0, 21.0]\n| EVAL sum = MV_PSERIES_WEIGHTED_SUM(a, 1.5)\n| KEEP sum',
   ],
@@ -7624,7 +7528,6 @@ const mvSliceDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'row a = [1, 2, 2, 3]\n| eval a1 = mv_slice(a, 1), a2 = mv_slice(a, 2, 3)',
     'row a = [1, 2, 2, 3]\n| eval a1 = mv_slice(a, -2), a2 = mv_slice(a, -3, -1)',
@@ -7812,7 +7715,6 @@ const mvSortDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = [4, 2, -3, 2]\n| EVAL sa = mv_sort(a), sd = mv_sort(a, "DESC")'],
 };
 
@@ -7878,7 +7780,6 @@ const mvSumDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=[3, 5, 6]\n| EVAL sum_a = MV_SUM(a)'],
 };
 
@@ -8124,7 +8025,6 @@ const mvZipDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW a = ["x", "y", "z"], b = ["1", "2"]\n| EVAL c = mv_zip(a, b, "-")\n| KEEP a, b, c',
   ],
@@ -8155,7 +8055,6 @@ const nowDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW current_date = NOW()', 'FROM sample_data\n| WHERE @timestamp > NOW() - 1 hour'],
 };
 
@@ -8184,7 +8083,6 @@ const piDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW PI()'],
 };
 
@@ -8449,7 +8347,6 @@ const powDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW base = 2.0, exponent = 2\n| EVAL result = POW(base, exponent)',
     'ROW base = 4, exponent = 0.5\n| EVAL s = POW(base, exponent)',
@@ -8507,7 +8404,6 @@ const qstrDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.WHERE, Location.STATS_WHERE],
-  validate: undefined,
   examples: [
     'FROM books\n| WHERE QSTR("author: Faulkner")',
     'FROM books\n| WHERE QSTR("title: Hobbjt~", {"fuzziness": 2})',
@@ -8567,7 +8463,6 @@ const repeatDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = "Hello!"\n| EVAL triple_a = REPEAT(a, 3)'],
 };
 
@@ -8753,7 +8648,6 @@ const replaceDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW str = "Hello World"\n| EVAL str = REPLACE(str, "World", "Universe")\n| KEEP str'],
 };
 
@@ -8798,7 +8692,6 @@ const reverseDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW message = "Some Text" | EVAL message_reversed = REVERSE(message);',
     'ROW bending_arts = "💧🪨🔥💨" | EVAL bending_arts_reversed = REVERSE(bending_arts);',
@@ -8857,7 +8750,6 @@ const rightDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| KEEP last_name\n| EVAL right = RIGHT(last_name, 3)'],
 };
 
@@ -9043,7 +8935,6 @@ const roundDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| KEEP first_name, last_name, height\n| EVAL height_ft = ROUND(height * 3.281, 1)',
   ],
@@ -9246,7 +9137,6 @@ const roundToDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| STATS COUNT(*) BY birth_window=ROUND_TO(\n    birth_date,\n    "1900-01-01T00:00:00Z"::DATETIME,\n    "1950-01-01T00:00:00Z"::DATETIME,\n    "1955-01-01T00:00:00Z"::DATETIME,\n    "1960-01-01T00:00:00Z"::DATETIME,\n    "1965-01-01T00:00:00Z"::DATETIME,\n    "1970-01-01T00:00:00Z"::DATETIME,\n    "1975-01-01T00:00:00Z"::DATETIME\n)\n| SORT birth_window ASC',
   ],
@@ -9293,7 +9183,6 @@ const rtrimDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW message = "   some text  ",  color = " red "\n| EVAL message = RTRIM(message)\n| EVAL color = RTRIM(color)\n| EVAL message = CONCAT("\'", message, "\'")\n| EVAL color = CONCAT("\'", color, "\'")',
   ],
@@ -9441,7 +9330,6 @@ const scalbDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['row x = 3.0, y = 10 | eval z = scalb(x, y)'],
 };
 
@@ -9478,7 +9366,6 @@ const scoreDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM books METADATA _score\n| WHERE match(title, "Return") AND match(author, "Tolkien")\n| EVAL first_score = score(match(title, "Return"))',
   ],
@@ -9525,7 +9412,6 @@ const sha1Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM sample_data\n| WHERE message != "Connection error"\n| EVAL sha1 = sha1(message)\n| KEEP message, sha1',
   ],
@@ -9572,7 +9458,6 @@ const sha256Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM sample_data\n| WHERE message != "Connection error"\n| EVAL sha256 = sha256(message)\n| KEEP message, sha256',
   ],
@@ -9640,7 +9525,6 @@ const signumDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW d = 100.0\n| EVAL s = SIGNUM(d)'],
 };
 
@@ -9705,7 +9589,6 @@ const sinDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL sin=SIN(a)'],
 };
 
@@ -9770,7 +9653,6 @@ const sinhDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL sinh=SINH(a)'],
 };
 
@@ -9805,7 +9687,6 @@ const spaceDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW message = CONCAT("Hello", SPACE(1), "World!");'],
 };
 
@@ -9890,7 +9771,6 @@ const splitDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW words="foo;bar;baz;qux;quux;corge"\n| EVAL word = SPLIT(words, ";")'],
 };
 
@@ -9956,7 +9836,6 @@ const sqrtDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW d = 100.0\n| EVAL s = SQRT(d)'],
 };
 
@@ -10102,7 +9981,6 @@ const stContainsDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE ST_CONTAINS(city_boundary, TO_GEOSHAPE("POLYGON((109.35 18.3, 109.45 18.3, 109.45 18.4, 109.35 18.4, 109.35 18.3))"))\n| KEEP abbrev, airport, region, city, city_location',
   ],
@@ -10250,7 +10128,6 @@ const stDisjointDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE ST_DISJOINT(city_boundary, TO_GEOSHAPE("POLYGON((-10 -60, 120 -60, 120 60, -10 60, -10 -60))"))\n| KEEP abbrev, airport, region, city, city_location',
   ],
@@ -10308,7 +10185,6 @@ const stDistanceDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| WHERE abbrev == "CPH"\n| EVAL distance = ST_DISTANCE(location, city_location)\n| KEEP abbrev, name, location, city_location, distance',
   ],
@@ -10375,7 +10251,6 @@ const stEnvelopeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE abbrev == "CPH"\n| EVAL envelope = ST_ENVELOPE(city_boundary)\n| KEEP abbrev, airport, envelope',
   ],
@@ -10439,7 +10314,6 @@ const stGeohashDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| EVAL geohash = ST_GEOHASH(location, 1)\n| STATS\n    count = COUNT(*),\n    centroid = ST_CENTROID_AGG(location)\n      BY geohash\n| WHERE count >= 10\n| EVAL geohashString = ST_GEOHASH_TO_STRING(geohash)\n| KEEP count, centroid, geohashString\n| SORT count DESC, geohashString ASC',
   ],
@@ -10488,7 +10362,6 @@ const stGeohashToLongDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW geohash = "u3bu"\n| EVAL geohashLong = ST_GEOHASH_TO_LONG(geohash)'],
 };
 
@@ -10535,7 +10408,6 @@ const stGeohashToStringDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW geohash = TO_LONG(13686180)\n| EVAL geohashString = ST_GEOHASH_TO_STRING(geohash)',
   ],
@@ -10602,7 +10474,6 @@ const stGeohexDefinition: FunctionDefinition = {
     Location.COMPLETION,
   ],
   license: 'PLATINUM',
-  validate: undefined,
   examples: [
     'FROM airports\n| EVAL geohex = ST_GEOHEX(location, 1)\n| STATS\n    count = COUNT(*),\n    centroid = ST_CENTROID_AGG(location)\n      BY geohex\n| WHERE count >= 10\n| EVAL geohexString = ST_GEOHEX_TO_STRING(geohex)\n| KEEP count, centroid, geohexString\n| SORT count DESC, geohexString ASC',
   ],
@@ -10651,7 +10522,6 @@ const stGeohexToLongDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW geohex = "841f059ffffffff"\n| EVAL geohexLong = ST_GEOHEX_TO_LONG(geohex)'],
 };
 
@@ -10698,7 +10568,6 @@ const stGeohexToStringDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW geohex = 595020895127339007\n| EVAL geohexString = ST_GEOHEX_TO_STRING(geohex)'],
 };
 
@@ -10760,7 +10629,6 @@ const stGeotileDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| EVAL geotile = ST_GEOTILE(location, 2)\n| STATS\n    count = COUNT(*),\n    centroid = ST_CENTROID_AGG(location)\n      BY geotile\n| EVAL geotileString = ST_GEOTILE_TO_STRING(geotile)\n| SORT count DESC, geotileString ASC\n| KEEP count, centroid, geotileString',
   ],
@@ -10809,7 +10677,6 @@ const stGeotileToLongDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW geotile = "4/8/5"\n| EVAL geotileLong = ST_GEOTILE_TO_LONG(geotile)'],
 };
 
@@ -10856,7 +10723,6 @@ const stGeotileToStringDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW geotile = 1152921508901814277\n| EVAL geotileString = ST_GEOTILE_TO_STRING(geotile)',
   ],
@@ -11004,7 +10870,6 @@ const stIntersectsDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airports\n| WHERE ST_INTERSECTS(location, TO_GEOSHAPE("POLYGON((42 14, 43 14, 43 15, 42 15, 42 14))"))',
   ],
@@ -11152,7 +11017,6 @@ const stWithinDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE ST_WITHIN(city_boundary, TO_GEOSHAPE("POLYGON((109.1 18.15, 109.6 18.15, 109.6 18.65, 109.1 18.65, 109.1 18.15))"))\n| KEEP abbrev, airport, region, city, city_location',
   ],
@@ -11200,7 +11064,6 @@ const stXDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW point = TO_GEOPOINT("POINT(42.97109629958868 14.7552534006536)")\n| EVAL x =  ST_X(point), y = ST_Y(point)',
   ],
@@ -11268,7 +11131,6 @@ const stXmaxDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE abbrev == "CPH"\n| EVAL envelope = ST_ENVELOPE(city_boundary)\n| EVAL xmin = ST_XMIN(envelope), xmax = ST_XMAX(envelope), ymin = ST_YMIN(envelope), ymax = ST_YMAX(envelope)\n| KEEP abbrev, airport, xmin, xmax, ymin, ymax',
   ],
@@ -11336,7 +11198,6 @@ const stXminDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE abbrev == "CPH"\n| EVAL envelope = ST_ENVELOPE(city_boundary)\n| EVAL xmin = ST_XMIN(envelope), xmax = ST_XMAX(envelope), ymin = ST_YMIN(envelope), ymax = ST_YMAX(envelope)\n| KEEP abbrev, airport, xmin, xmax, ymin, ymax',
   ],
@@ -11384,7 +11245,6 @@ const stYDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW point = TO_GEOPOINT("POINT(42.97109629958868 14.7552534006536)")\n| EVAL x =  ST_X(point), y = ST_Y(point)',
   ],
@@ -11452,7 +11312,6 @@ const stYmaxDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE abbrev == "CPH"\n| EVAL envelope = ST_ENVELOPE(city_boundary)\n| EVAL xmin = ST_XMIN(envelope), xmax = ST_XMAX(envelope), ymin = ST_YMIN(envelope), ymax = ST_YMAX(envelope)\n| KEEP abbrev, airport, xmin, xmax, ymin, ymax',
   ],
@@ -11520,7 +11379,6 @@ const stYminDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM airport_city_boundaries\n| WHERE abbrev == "CPH"\n| EVAL envelope = ST_ENVELOPE(city_boundary)\n| EVAL xmin = ST_XMIN(envelope), xmax = ST_XMAX(envelope), ymin = ST_YMIN(envelope), ymax = ST_YMAX(envelope)\n| KEEP abbrev, airport, xmin, xmax, ymin, ymax',
   ],
@@ -11608,7 +11466,6 @@ const startsWithDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM employees\n| KEEP last_name\n| EVAL ln_S = STARTS_WITH(last_name, "B")'],
 };
 
@@ -11674,7 +11531,6 @@ const substringDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM employees\n| KEEP last_name\n| EVAL ln_sub = SUBSTRING(last_name, 1, 3)',
     'FROM employees\n| KEEP last_name\n| EVAL ln_sub = SUBSTRING(last_name, -3, 3)',
@@ -11743,7 +11599,6 @@ const tanDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL tan=TAN(a)'],
 };
 
@@ -11808,7 +11663,6 @@ const tanhDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=1.8\n| EVAL tanh=TANH(a)'],
 };
 
@@ -11837,7 +11691,6 @@ const tauDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW TAU()'],
 };
 
@@ -11924,7 +11777,6 @@ const termDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['FROM books\n| WHERE TERM(author, "gabriel")'],
 };
 
@@ -11948,7 +11800,6 @@ const toAggregateMetricDoubleDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW x = 3892095203\n| EVAL agg_metric = TO_AGGREGATE_METRIC_DOUBLE(x)',
     'ROW x = [5032, 11111, 40814]\n| EVAL agg_metric = TO_AGGREGATE_METRIC_DOUBLE(x)',
@@ -11996,7 +11847,6 @@ const toBase64Definition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a = "elastic"\n| EVAL e = TO_BASE64(a)'],
 };
 
@@ -12092,7 +11942,6 @@ const toBooleanDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW str = ["true", "TRuE", "false", "", "yes", "1"]\n| EVAL bool = TO_BOOLEAN(str)'],
 };
 
@@ -12148,7 +11997,6 @@ const toCartesianpointDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW wkt = ["POINT(4297.11 -1475.53)", "POINT(7580.93 2272.77)"]\n| MV_EXPAND wkt\n| EVAL pt = TO_CARTESIANPOINT(wkt)',
   ],
@@ -12216,7 +12064,6 @@ const toCartesianshapeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW wkt = ["POINT(4297.11 -1475.53)", "POLYGON ((3339584.72 1118889.97, 4452779.63 4865942.27, 2226389.81 4865942.27, 1113194.90 2273030.92, 3339584.72 1118889.97))"]\n| MV_EXPAND wkt\n| EVAL geom = TO_CARTESIANSHAPE(wkt)',
   ],
@@ -12313,7 +12160,6 @@ const toDateNanosDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'FROM date_nanos\n| WHERE MV_MIN(nanos) < TO_DATE_NANOS("2023-10-23T12:27:28.948Z")\n    AND millis > "2000-01-01"\n| SORT nanos DESC',
   ],
@@ -12370,7 +12216,6 @@ const toDateperiodDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW x = "2024-01-01"::datetime\n| EVAL y = x + "3 DAYS"::date_period, z = x - TO_DATEPERIOD("3 days");',
   ],
@@ -12478,7 +12323,6 @@ const toDatetimeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW string = ["1953-09-02T00:00:00.000Z", "1964-06-02T00:00:00.000Z", "1964-06-02 00:00:00"]\n| EVAL datetime = TO_DATETIME(string)',
     'ROW int = [0, 1]\n| EVAL dt = TO_DATETIME(int)',
@@ -12546,7 +12390,6 @@ const toDegreesDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW rad = [1.57, 3.14, 4.71]\n| EVAL deg = TO_DEGREES(rad)'],
 };
 
@@ -12682,7 +12525,6 @@ const toDoubleDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW str1 = "5.20128E11", str2 = "foo"\n| EVAL dbl = TO_DOUBLE("520128000000"), dbl1 = TO_DOUBLE(str1), dbl2 = TO_DOUBLE(str2)',
   ],
@@ -12740,7 +12582,6 @@ const toGeopointDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW wkt = "POINT(42.97109630194 14.7552534413725)"\n| EVAL pt = TO_GEOPOINT(wkt)'],
 };
 
@@ -12806,7 +12647,6 @@ const toGeoshapeDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW wkt = "POLYGON ((30 10, 40 40, 20 40, 10 20, 30 10))"\n| EVAL geom = TO_GEOSHAPE(wkt)',
   ],
@@ -12924,7 +12764,6 @@ const toIntegerDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW long = [5013792, 2147483647, 501379200000]\n| EVAL int = TO_INTEGER(long)'],
 };
 
@@ -12979,7 +12818,6 @@ const toIpDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW str1 = "1.1.1.1", str2 = "foo"\n| EVAL ip1 = TO_IP(str1), ip2 = TO_IP(str2)\n| WHERE CIDR_MATCH(ip1, "1.0.0.0/8")',
     'ROW s = "1.1.010.1" | EVAL ip = TO_IP(s, {"leading_zeros":"octal"})',
@@ -13119,7 +12957,6 @@ const toLongDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW str1 = "2147483648", str2 = "2147483648.2", str3 = "foo"\n| EVAL long1 = TO_LONG(str1), long2 = TO_LONG(str2), long3 = TO_LONG(str3)',
   ],
@@ -13166,7 +13003,6 @@ const toLowerDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW message = "Some Text"\n| EVAL message_lower = TO_LOWER(message)',
     'ROW v = TO_LOWER(["Some", "Text"])',
@@ -13234,7 +13070,6 @@ const toRadiansDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW deg = [90.0, 180.0, 270.0]\n| EVAL rad = TO_RADIANS(deg)'],
 };
 
@@ -13409,7 +13244,6 @@ const toStringDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW a=10\n| EVAL j = TO_STRING(a)', 'ROW a=[10, 9, 8]\n| EVAL j = TO_STRING(a)'],
 };
 
@@ -13464,7 +13298,6 @@ const toTimedurationDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW x = "2024-01-01"::datetime\n| EVAL y = x + "3 hours"::time_duration, z = x - TO_TIMEDURATION("3 hours");',
   ],
@@ -13572,7 +13405,6 @@ const toUnsignedLongDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW str1 = "2147483648", str2 = "2147483648.2", str3 = "foo"\n| EVAL long1 = TO_UNSIGNED_LONG(str1), long2 = TO_ULONG(str2), long3 = TO_UL(str3)',
   ],
@@ -13619,7 +13451,6 @@ const toUpperDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW message = "Some Text"\n| EVAL message_upper = TO_UPPER(message)'],
 };
 
@@ -13674,7 +13505,6 @@ const toVersionDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: ['ROW v = TO_VERSION("1.2.3")'],
 };
 
@@ -13719,7 +13549,6 @@ const trimDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'ROW message = "   some text  ",  color = " red "\n| EVAL message = TRIM(message)\n| EVAL color = TRIM(color)',
   ],
@@ -13746,7 +13575,6 @@ const vCosineDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     ' from colors\n | where color != "black"\n | eval similarity = v_cosine(rgb_vector, [0, 255, 255])\n | sort similarity desc, color asc',
   ],
@@ -13773,7 +13601,6 @@ const vDotProductDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     ' from colors\n | eval similarity = v_dot_product(rgb_vector, [0, 255, 255])\n | sort similarity desc, color asc',
   ],
@@ -13800,12 +13627,37 @@ const vL1NormDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     ' from colors\n | eval similarity = v_l1_norm(rgb_vector, [0, 255, 255])\n | sort similarity desc, color asc',
   ],
 };
 
+// Do not edit this manually... generated by scripts/generate_function_definitions.ts
+const vL2NormDefinition: FunctionDefinition = {
+  type: FunctionDefinitionTypes.SCALAR,
+  name: 'v_l2_norm',
+  description: i18n.translate('kbn-esql-ast.esql.definitions.v_l2_norm', {
+    defaultMessage: 'Calculates the l2 norm between two dense_vectors.',
+  }),
+  ignoreAsSuggestion: true,
+  preview: true,
+  alias: undefined,
+  signatures: [],
+  locationsAvailable: [
+    Location.EVAL,
+    Location.ROW,
+    Location.SORT,
+    Location.WHERE,
+    Location.STATS,
+    Location.STATS_BY,
+    Location.STATS_WHERE,
+    Location.COMPLETION,
+  ],
+  examples: [
+    ' from colors\n | eval similarity = v_l2_norm(rgb_vector, [0, 255, 255])\n | sort similarity desc, color asc',
+  ],
+};
+
 // Do not edit this manually... generated by scripts/generate_function_definitions.ts
 const caseDefinition: FunctionDefinition = {
   type: FunctionDefinitionTypes.SCALAR,
@@ -13842,7 +13694,6 @@ const caseDefinition: FunctionDefinition = {
     Location.STATS_WHERE,
     Location.COMPLETION,
   ],
-  validate: undefined,
   examples: [
     'from index | eval type = case(languages <= 1, "monolingual", languages <= 2, "bilingual", "polyglot")',
   ],
@@ -13980,5 +13831,6 @@ export const scalarFunctionDefinitions = [
   vCosineDefinition,
   vDotProductDefinition,
   vL1NormDefinition,
+  vL2NormDefinition,
   caseDefinition,
 ];
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/time_series_agg_functions.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/time_series_agg_functions.ts
index ae6c60ea08b63..7ef5319383644 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/time_series_agg_functions.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/generated/time_series_agg_functions.ts
@@ -73,7 +73,6 @@ const avgOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS max_cost=max(avg_over_time(network.cost)) BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -642,7 +641,6 @@ const countDistinctOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS distincts=count_distinct(count_distinct_over_time(network.cost)),\n        distincts_imprecise=count_distinct(count_distinct_over_time(network.cost, 100))\n  BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -811,7 +809,6 @@ const countOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS count=count(count_over_time(network.cost))\n  BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -861,7 +858,6 @@ const firstOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS max_cost=max(first_over_time(network.cost)) BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -911,7 +907,6 @@ const lastOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS max_cost=max(last_over_time(network.cost)) BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -1040,7 +1035,6 @@ const maxOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS cost=sum(max_over_time(network.cost)) BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -1169,7 +1163,6 @@ const minOverTimeDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS cost=sum(min_over_time(network.cost)) BY cluster, time_bucket = bucket(@timestamp,1minute)',
   ],
@@ -1218,7 +1211,6 @@ const rateDefinition: FunctionDefinition = {
     },
   ],
   locationsAvailable: [Location.STATS_TIMESERIES],
-  validate: undefined,
   examples: [
     'TS k8s\n| STATS max(rate(network.total_bytes_in)) BY time_bucket = bucket(@timestamp,5minute)',
   ],
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/types.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/types.ts
index 9597b627eb49e..0c51715b16864 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/types.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/types.ts
@@ -7,7 +7,7 @@
  * License v3.0 only", or the "Server Side Public License, v 1".
  */
 import type { ESQLSignatureLicenseType } from '@kbn/esql-types';
-import type { ESQLFunction, ESQLMessage, ESQLNumericLiteralType } from '../types';
+import type { ESQLNumericLiteralType } from '../types';
 import { Location } from '../commands_registry/types';
 
 /**
@@ -218,7 +218,6 @@ export interface FunctionDefinition {
   locationsAvailable: Location[];
   signatures: Signature[];
   examples?: string[];
-  validate?: (fnDef: ESQLFunction) => ESQLMessage[];
   operator?: string;
   customParametersSnippet?: string;
   license?: ESQLSignatureLicenseType;
@@ -299,10 +298,6 @@ export interface ValidationErrors {
     message: string;
     type: { name: string; value: string; supportedOptions: string };
   };
-  shadowFieldType: {
-    message: string;
-    type: { field: string; fieldType: string; newType: string };
-  };
   unsupportedColumnTypeForCommand: {
     message: string;
     type: { command: string; type: string; givenType: string; column: string };
@@ -331,14 +326,6 @@ export interface ValidationErrors {
     message: string;
     type: { type: string; value: string };
   };
-  wildcardNotSupportedForCommand: {
-    message: string;
-    type: { command: string; value: string };
-  };
-  noWildcardSupportAsArg: {
-    message: string;
-    type: { name: string };
-  };
   unsupportedFieldType: {
     message: string;
     type: { field: string };
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/errors.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/errors.ts
index 7699703268f46..678ce4608450a 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/errors.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/errors.ts
@@ -110,15 +110,6 @@ function getMessageAndTypeFromId<K extends ErrorTypes>({
           values: { name: out.name, argType: out.argType },
         }),
       };
-    case 'shadowFieldType':
-      return {
-        message: i18n.translate('kbn-esql-ast.esql.validation.typeOverwrite', {
-          defaultMessage:
-            'Column [{field}] of type {fieldType} has been overwritten as new type: {newType}',
-          values: { field: out.field, fieldType: out.fieldType, newType: out.newType },
-        }),
-        type: 'warning',
-      };
     case 'unsupportedColumnTypeForCommand':
       return {
         message: i18n.translate('kbn-esql-ast.esql.validation.unsupportedColumnTypeForCommand', {
@@ -217,25 +208,6 @@ function getMessageAndTypeFromId<K extends ErrorTypes>({
           },
         }),
       };
-    case 'wildcardNotSupportedForCommand':
-      return {
-        message: i18n.translate('kbn-esql-ast.esql.validation.wildcardNotSupportedForCommand', {
-          defaultMessage: 'Using wildcards (*) in {command} is not allowed [{value}]',
-          values: {
-            command: out.command,
-            value: out.value,
-          },
-        }),
-      };
-    case 'noWildcardSupportAsArg':
-      return {
-        message: i18n.translate('kbn-esql-ast.esql.validation.wildcardNotSupportedForFunction', {
-          defaultMessage: 'Using wildcards (*) in {name} is not allowed',
-          values: {
-            name: out.name,
-          },
-        }),
-      };
     case 'unsupportedFieldType':
       return {
         message: i18n.translate('kbn-esql-ast.esql.validation.unsupportedFieldType', {
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/commands.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/commands.ts
index f534c793e37e2..ccf3d9d0f2c20 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/commands.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/commands.ts
@@ -6,7 +6,6 @@
  * your election, the "Elastic License 2.0", the "GNU Affero General Public
  * License v3.0 only", or the "Server Side Public License, v 1".
  */
-import { isEqual } from 'lodash';
 import {
   isFunctionExpression,
   isOptionNode,
@@ -31,7 +30,6 @@ export const validateCommandArguments = (
   },
   callbacks: ICommandCallbacks = {}
 ) => {
-  const currentCommandIndex = ast.findIndex((astCommand) => isEqual(astCommand, command));
   const messages: ESQLMessage[] = [];
   for (const arg of command.args) {
     if (!Array.isArray(arg)) {
@@ -44,7 +42,6 @@ export const validateCommandArguments = (
             context,
             callbacks,
             parentAst: ast,
-            currentCommandIndex,
           })
         );
       } else if (isOptionNode(arg)) {
diff --git a/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/function.ts b/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/function.ts
index 184c6dd52db32..d3e2d30d09141 100644
--- a/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/function.ts
+++ b/src/platform/packages/shared/kbn-esql-ast/src/definitions/utils/validation/function.ts
@@ -18,10 +18,6 @@ import {
   ESQLParamLiteral,
 } from '../../../types';
 import { isAssignment, isInlineCast } from '../../../ast/is';
-import {
-  UNSUPPORTED_COMMANDS_BEFORE_MATCH,
-  UNSUPPORTED_COMMANDS_BEFORE_QSTR,
-} from '../../constants';
 import { getMessageFromId, errors, getFunctionDefinition, getColumnForASTNode } from '..';
 import {
   FunctionParameter,
@@ -319,8 +315,6 @@ function unwrapArrayOneLevel(type: FunctionParameterType): FunctionParameterType
   return isArrayType(type) ? (type.slice(0, -2) as FunctionParameterType) : type;
 }
 
-const NO_MESSAGE: ESQLMessage[] = [];
-
 /**
  * Performs validation on a function
  */
@@ -333,7 +327,6 @@ export function validateFunction({
   forceConstantOnly = false,
   isNested,
   parentAst,
-  currentCommandIndex,
 }: {
   fn: ESQLFunction;
   parentCommand: string;
@@ -343,7 +336,6 @@ export function validateFunction({
   forceConstantOnly?: boolean;
   isNested?: boolean;
   parentAst?: ESQLCommand[];
-  currentCommandIndex?: number;
 }): ESQLMessage[] {
   const messages: ESQLMessage[] = [];
 
@@ -357,20 +349,6 @@ export function validateFunction({
 
   const isFnSupported = isSupportedFunction(fn.name, parentCommand, parentOption);
 
-  if (typeof textSearchFunctionsValidators[fn.name] === 'function') {
-    const validator = textSearchFunctionsValidators[fn.name];
-    messages.push(
-      ...validator({
-        fn,
-        parentCommand,
-        parentOption,
-        context,
-        isNested,
-        parentAst,
-        currentCommandIndex,
-      })
-    );
-  }
   if (!isFnSupported.supported) {
     if (isFnSupported.reason === 'unknownFunction') {
       messages.push(errors.unknownFunction(fn));
@@ -537,13 +515,7 @@ export function validateFunction({
       }
     }
   }
-  // check if the definition has some specific validation to apply:
-  if (fnDefinition.validate) {
-    const payloads = fnDefinition.validate(fn);
-    if (payloads.length) {
-      messages.push(...payloads);
-    }
-  }
+
   // at this point we're sure that at least one signature is matching
   const failingSignatures: ESQLMessage[][] = [];
   let relevantFuncSignatures = matchingSignatures;
@@ -836,19 +808,7 @@ function validateFunctionColumnArg(
   }
 
   if (actualArg.name === '*') {
-    // if function does not support wildcards return a specific error
-    if (!('supportsWildcard' in parameterDefinition) || !parameterDefinition.supportsWildcard) {
-      messages.push(
-        getMessageFromId({
-          messageId: 'noWildcardSupportAsArg',
-          values: {
-            name: astFunction.name,
-          },
-          locations: actualArg.location,
-        })
-      );
-    }
-
+    // special case for COUNT(*)
     return messages;
   }
 
@@ -888,88 +848,6 @@ function removeInlineCasts(arg: ESQLAstItem): ESQLAstItem {
 
 // #region Specific functions
 
-function validateIfHasUnsupportedCommandPrior(
-  fn: ESQLFunction,
-  parentAst: ESQLCommand[] = [],
-  unsupportedCommands: Set<string>,
-  currentCommandIndex?: number
-) {
-  if (currentCommandIndex === undefined) {
-    return NO_MESSAGE;
-  }
-  const unsupportedCommandsPrior = parentAst.filter(
-    (cmd, idx) => idx <= currentCommandIndex && unsupportedCommands.has(cmd.name)
-  );
-
-  if (unsupportedCommandsPrior.length > 0) {
-    return [
-      getMessageFromId({
-        messageId: 'fnUnsupportedAfterCommand',
-        values: {
-          function: fn.name.toUpperCase(),
-          command: unsupportedCommandsPrior[0].name.toUpperCase(),
-        },
-        locations: fn.location,
-      }),
-    ];
-  }
-  return NO_MESSAGE;
-}
-
-const validateMatchFunction: FunctionValidator = ({
-  fn,
-  parentCommand,
-  parentAst,
-  currentCommandIndex,
-}) => {
-  if (fn.name === 'match') {
-    if (parentCommand !== 'where') {
-      return [
-        getMessageFromId({
-          messageId: 'onlyWhereCommandSupported',
-          values: { fn: fn.name },
-          locations: fn.location,
-        }),
-      ];
-    }
-    return validateIfHasUnsupportedCommandPrior(
-      fn,
-      parentAst,
-      UNSUPPORTED_COMMANDS_BEFORE_MATCH,
-      currentCommandIndex
-    );
-  }
-  return NO_MESSAGE;
-};
-
-type FunctionValidator = (args: {
-  fn: ESQLFunction;
-  parentCommand: string;
-  parentOption?: string;
-  context: ICommandContext;
-  forceConstantOnly?: boolean;
-  isNested?: boolean;
-  parentAst?: ESQLCommand[];
-  currentCommandIndex?: number;
-}) => ESQLMessage[];
-
-const validateQSTRFunction: FunctionValidator = ({ fn, parentAst, currentCommandIndex }) => {
-  if (fn.name === 'qstr') {
-    return validateIfHasUnsupportedCommandPrior(
-      fn,
-      parentAst,
-      UNSUPPORTED_COMMANDS_BEFORE_QSTR,
-      currentCommandIndex
-    );
-  }
-  return NO_MESSAGE;
-};
-
-const textSearchFunctionsValidators: Record<string, FunctionValidator> = {
-  match: validateMatchFunction,
-  qstr: validateQSTRFunction,
-};
-
 export function isSupportedFunction(
   name: string,
   parentCommand?: string,
diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/functions.test.ts b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/functions.test.ts
index bc7f7d7bdc052..89b79228a49d4 100644
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/functions.test.ts
+++ b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/functions.test.ts
@@ -351,49 +351,6 @@ describe('function validation', () => {
       await expectErrors('FROM a_index | EVAL TEST("", "")', []);
     });
 
-    it('validates "all" parameter (wildcard)', async () => {
-      setTestFunctions([
-        {
-          name: 'supports_all',
-          type: FunctionDefinitionTypes.SCALAR,
-          description: '',
-          locationsAvailable: [Location.EVAL],
-          signatures: [
-            {
-              params: [{ name: 'arg1', type: 'keyword', supportsWildcard: true }],
-              returnType: 'keyword',
-            },
-          ],
-        },
-        {
-          name: 'does_not_support_all',
-          type: FunctionDefinitionTypes.SCALAR,
-          description: '',
-          locationsAvailable: [Location.EVAL],
-          signatures: [
-            {
-              params: [{ name: 'arg1', type: 'keyword', supportsWildcard: false }],
-              returnType: 'keyword',
-            },
-          ],
-        },
-      ]);
-
-      const { expectErrors } = await setup();
-
-      await expectErrors('FROM a_index | EVAL SUPPORTS_ALL(*)', []);
-      await expectErrors('FROM a_index | EVAL SUPPORTS_ALL(*, "")', [
-        // It may seem strange that these are syntax errors, but the grammar actually doesn't allow
-        // for a function to support the asterisk and have additional arguments. Testing it here so we'll
-        // be notified if that changes.
-        `SyntaxError: extraneous input ')' expecting <EOF>`,
-        `SyntaxError: no viable alternative at input 'SUPPORTS_ALL(*,'`,
-      ]);
-      await expectErrors('FROM a_index | EVAL DOES_NOT_SUPPORT_ALL(*)', [
-        'Using wildcards (*) in does_not_support_all is not allowed',
-      ]);
-    });
-
     it('casts string arguments to dates', async () => {
       setTestFunctions([
         {
@@ -691,7 +648,6 @@ describe('function validation', () => {
           'SORT does not support function stats_fn',
         ]);
         await expectErrors('FROM a_index | STATS ROW_FN()', [
-          'At least one aggregation function required in [STATS], found [ROW_FN()]',
           'STATS does not support function row_fn',
         ]);
         await expectErrors('ROW WHERE_FN()', ['ROW does not support function where_fn']);
diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/validation.functions.full_text.test.ts b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/validation.functions.full_text.test.ts
deleted file mode 100644
index e8d378d7c8935..0000000000000
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/__tests__/validation.functions.full_text.test.ts
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the "Elastic License
- * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
- * Public License v 1"; you may not use this file except in compliance with, at
- * your election, the "Elastic License 2.0", the "GNU Affero General Public
- * License v3.0 only", or the "Server Side Public License, v 1".
- */
-
-import { setup } from './helpers';
-
-describe('validation', () => {
-  describe('MATCH function', () => {
-    it('no error if valid', async () => {
-      const { expectErrors } = await setup();
-      await expectErrors('FROM index | WHERE MATCH(keywordField, "value") | LIMIT 10 ', []);
-      await expectErrors(
-        'FROM index | EVAL a=CONCAT(keywordField, "_") | WHERE MATCH(a, "value") | LIMIT 10 ',
-        []
-      );
-    });
-
-    it('shows errors if after incompatible commands ', async () => {
-      const { expectErrors } = await setup();
-      await expectErrors('FROM index | LIMIT 10 | WHERE MATCH(keywordField, "value")', [
-        '[MATCH] function cannot be used after LIMIT',
-      ]);
-
-      await expectErrors(`FROM index | EVAL MATCH(a, "value")`, [
-        'EVAL does not support function match',
-        '[MATCH] function is only supported in WHERE commands',
-      ]);
-    });
-  });
-  describe('QSRT function', () => {
-    it('no error if valid', async () => {
-      const { expectErrors } = await setup();
-      await expectErrors('FROM index | WHERE QSTR("keywordField:value") | LIMIT 10 ', []);
-    });
-
-    it('shows errors if comes after incompatible functions or commands ', async () => {
-      const { expectErrors } = await setup();
-      await expectErrors('ROW a = 1, b = "two", c = null | WHERE QSTR("keywordField:value")', [
-        '[QSTR] function cannot be used after ROW',
-      ]);
-      for (const clause of [
-        { command: 'LIMIT', clause: 'LIMIT 10' },
-        { command: 'EVAL', clause: 'EVAL a=CONCAT(keywordField, "_")' },
-        { command: 'KEEP', clause: 'KEEP keywordField' },
-        { command: 'RENAME', clause: 'RENAME keywordField as a' },
-        { command: 'STATS', clause: 'STATS avg(doubleField) by keywordField' },
-      ]) {
-        await expectErrors(`FROM index | ${clause.clause} | WHERE QSTR("keywordField:value")`, [
-          `[QSTR] function cannot be used after ${clause.command}`,
-        ]);
-      }
-      await expectErrors(`FROM index | EVAL QSTR("keywordField:value")`, [
-        `EVAL does not support function qstr`,
-        '[QSTR] function cannot be used after EVAL',
-      ]);
-
-      await expectErrors(`FROM index | STATS avg(doubleField) by QSTR("keywordField:value")`, [
-        `STATS BY does not support function qstr`,
-      ]);
-    });
-  });
-});
diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/esql_validation_meta_tests.json b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/esql_validation_meta_tests.json
index 3c66e1e984e01..676e4eeb0dd56 100644
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/esql_validation_meta_tests.json
+++ b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/esql_validation_meta_tests.json
@@ -608,20 +608,6 @@
       ],
       "warning": []
     },
-    {
-      "query": "from a_index | eval textField = 5",
-      "error": [],
-      "warning": [
-        "Column [textField] of type text has been overwritten as new type: integer"
-      ]
-    },
-    {
-      "query": "from a_index | eval doubleField = \"5\"",
-      "error": [],
-      "warning": [
-        "Column [doubleField] of type double has been overwritten as new type: keyword"
-      ]
-    },
     {
       "query": "from a_index | eval round(doubleField) + 1 | eval `round(doubleField) + 1` + 1 | keep ```round(doubleField) + 1`` + 1`",
       "error": [],
diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.test.ts b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.test.ts
index d7e3ee6d01f00..88f4a9a2a3560 100644
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.test.ts
+++ b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.test.ts
@@ -541,16 +541,7 @@ describe('validation logic', () => {
     });
 
     describe('shadowing', () => {
-      testErrorsAndWarnings(
-        'from a_index | eval textField = 5',
-        [],
-        ['Column [textField] of type text has been overwritten as new type: integer']
-      );
-      testErrorsAndWarnings(
-        'from a_index | eval doubleField = "5"',
-        [],
-        ['Column [doubleField] of type double has been overwritten as new type: keyword']
-      );
+      // fields shadowing validation removed
     });
 
     describe('quoting and escaping expressions', () => {
diff --git a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.ts b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.ts
index 61f0454360e33..e3a3571b123d2 100644
--- a/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.ts
+++ b/src/platform/packages/shared/kbn-esql-validation-autocomplete/src/validation/validation.ts
@@ -19,11 +19,10 @@ import {
 import { getMessageFromId } from '@kbn/esql-ast/src/definitions/utils';
 import type {
   ESQLFieldWithMetadata,
-  ESQLUserDefinedColumn,
   ICommandCallbacks,
 } from '@kbn/esql-ast/src/commands_registry/types';
 import { ESQLLicenseType } from '@kbn/esql-types';
-import { areFieldAndUserDefinedColumnTypesCompatible } from '../shared/helpers';
+
 import type { ESQLCallbacks } from '../shared/types';
 import { collectUserDefinedColumns } from '../shared/user_defined_columns';
 import {
@@ -153,8 +152,6 @@ async function validateAst(
   }
 
   const userDefinedColumns = collectUserDefinedColumns(rootCommands, availableFields, queryString);
-  // notify if the user is rewriting a column as userDefinedColumn with another type
-  messages.push(...validateFieldsShadowing(availableFields, userDefinedColumns));
   messages.push(...validateUnsupportedTypeFields(availableFields, rootCommands));
 
   const references: ReferenceMaps = {
@@ -249,42 +246,6 @@ function validateCommand(
   return messages;
 }
 
-function validateFieldsShadowing(
-  fields: Map<string, ESQLFieldWithMetadata>,
-  userDefinedColumns: Map<string, ESQLUserDefinedColumn[]>
-) {
-  const messages: ESQLMessage[] = [];
-  for (const userDefinedColumn of userDefinedColumns.keys()) {
-    if (fields.has(userDefinedColumn)) {
-      const userDefinedColumnHits = userDefinedColumns.get(userDefinedColumn)!;
-      if (
-        !areFieldAndUserDefinedColumnTypesCompatible(
-          fields.get(userDefinedColumn)?.type,
-          userDefinedColumnHits[0].type
-        )
-      ) {
-        const fieldType = fields.get(userDefinedColumn)!.type;
-        const userDefinedColumnType = userDefinedColumnHits[0].type;
-        const flatFieldType = fieldType;
-        const flatUserDefinedColumnType = userDefinedColumnType;
-        messages.push(
-          getMessageFromId({
-            messageId: 'shadowFieldType',
-            values: {
-              field: userDefinedColumn,
-              fieldType: flatFieldType,
-              newType: flatUserDefinedColumnType,
-            },
-            locations: userDefinedColumnHits[0].location,
-          })
-        );
-      }
-    }
-  }
-
-  return messages;
-}
-
 function validateUnsupportedTypeFields(fields: Map<string, ESQLFieldWithMetadata>, ast: ESQLAst) {
   const usedColumnsInQuery: string[] = [];