diff --git a/docs/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md b/docs/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
index 969997b68fd81..75aa6c16d4b7e 100644
--- a/docs/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
+++ b/docs/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
@@ -5,7 +5,7 @@
 }
 ---
 
-<!-- 
+<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
@@ -39,8 +39,6 @@ SUBSTRING_INDEX(<content>, <delimiter>, <field>)
 | `<delimiter>` | The delimiter string, case-sensitive and multi-byte safe. Type: VARCHAR                                         |
 | `<field>` | Number of delimiter occurrences. Positive numbers count from left, negative numbers count from right. Type: INT |
 
-Note: The delimiter and field parameters must be constants, variables are not supported.
-
 ## Return Value
 
 Returns VARCHAR type, representing the extracted substring.
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
index 131280d7218c7..a0a071784ead1 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
@@ -5,7 +5,7 @@
 }
 ---
 
-<!-- 
+<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
@@ -39,8 +39,6 @@ SUBSTRING_INDEX(<content>, <delimiter>, <field>)
 | `<delimiter>` | 分隔符，大小写敏感且多字节安全。类型：VARCHAR           |
 | `<field>` | 分隔符出现的次数。正数从左计数，负数从右计数。类型：INT |
 
-注意：delimiter 和 field 参数需要是常量，不支持变量。
-
 ## 返回值
 
 返回 VARCHAR 类型，表示截取后的子字符串。
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
index 131280d7218c7..a0a071784ead1 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
@@ -5,7 +5,7 @@
 }
 ---
 
-<!-- 
+<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
@@ -39,8 +39,6 @@ SUBSTRING_INDEX(<content>, <delimiter>, <field>)
 | `<delimiter>` | 分隔符，大小写敏感且多字节安全。类型：VARCHAR           |
 | `<field>` | 分隔符出现的次数。正数从左计数，负数从右计数。类型：INT |
 
-注意：delimiter 和 field 参数需要是常量，不支持变量。
-
 ## 返回值
 
 返回 VARCHAR 类型，表示截取后的子字符串。
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
index 131280d7218c7..a0a071784ead1 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
@@ -5,7 +5,7 @@
 }
 ---
 
-<!-- 
+<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
@@ -39,8 +39,6 @@ SUBSTRING_INDEX(<content>, <delimiter>, <field>)
 | `<delimiter>` | 分隔符，大小写敏感且多字节安全。类型：VARCHAR           |
 | `<field>` | 分隔符出现的次数。正数从左计数，负数从右计数。类型：INT |
 
-注意：delimiter 和 field 参数需要是常量，不支持变量。
-
 ## 返回值
 
 返回 VARCHAR 类型，表示截取后的子字符串。
diff --git a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
index 969997b68fd81..75aa6c16d4b7e 100644
--- a/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
+++ b/versioned_docs/version-2.1/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
@@ -5,7 +5,7 @@
 }
 ---
 
-<!-- 
+<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
@@ -39,8 +39,6 @@ SUBSTRING_INDEX(<content>, <delimiter>, <field>)
 | `<delimiter>` | The delimiter string, case-sensitive and multi-byte safe. Type: VARCHAR                                         |
 | `<field>` | Number of delimiter occurrences. Positive numbers count from left, negative numbers count from right. Type: INT |
 
-Note: The delimiter and field parameters must be constants, variables are not supported.
-
 ## Return Value
 
 Returns VARCHAR type, representing the extracted substring.
diff --git a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
index 969997b68fd81..75aa6c16d4b7e 100644
--- a/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
+++ b/versioned_docs/version-3.0/sql-manual/sql-functions/scalar-functions/string-functions/substring-index.md
@@ -5,7 +5,7 @@
 }
 ---
 
-<!-- 
+<!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
@@ -39,8 +39,6 @@ SUBSTRING_INDEX(<content>, <delimiter>, <field>)
 | `<delimiter>` | The delimiter string, case-sensitive and multi-byte safe. Type: VARCHAR                                         |
 | `<field>` | Number of delimiter occurrences. Positive numbers count from left, negative numbers count from right. Type: INT |
 
-Note: The delimiter and field parameters must be constants, variables are not supported.
-
 ## Return Value
 
 Returns VARCHAR type, representing the extracted substring.