Rename variable in visitUnnest

Author: hqbhoho

core/trino-main/src/main/java/io/trino/sql/analyzer/StatementAnalyzer.java

@@ -1625,9 +1625,9 @@ protected Scope visitQuery(Query node, Optional<Scope> scope)
         @Override
         protected Scope visitUnnest(Unnest node, Optional<Scope> scope)
         {
-            ImmutableMap.Builder<NodeRef<Expression>, List<Field>> mappings = ImmutableMap.builder();
+            ImmutableMap.Builder<NodeRef<Expression>, List<Field>> mappingsBuilder = ImmutableMap.builder();
 
-            ImmutableList.Builder<Field> outputFields = ImmutableList.builder();
+            ImmutableList.Builder<Field> outputFieldsBuilder = ImmutableList.builder();
             for (Expression expression : node.getExpressions()) {
                 verifyNoAggregateWindowOrGroupingFunctions(session, functionResolver, accessControl, expression, "UNNEST");
                 List<Field> expressionOutputs = new ArrayList<>();
@@ -1654,20 +1654,20 @@ else if (expressionType instanceof MapType mapType) {
                     throw new TrinoException(INVALID_FUNCTION_ARGUMENT, "Cannot unnest type: " + expressionType);
                 }
 
-                outputFields.addAll(expressionOutputs);
-                mappings.put(NodeRef.of(expression), expressionOutputs);
+                outputFieldsBuilder.addAll(expressionOutputs);
+                mappingsBuilder.put(NodeRef.of(expression), expressionOutputs);
             }
 
             Optional<Field> ordinalityField = Optional.empty();
             if (node.isWithOrdinality()) {
                 ordinalityField = Optional.of(Field.newUnqualified(Optional.empty(), BIGINT));
             }
 
-            ordinalityField.ifPresent(outputFields::add);
+            ordinalityField.ifPresent(outputFieldsBuilder::add);
 
-            analysis.setUnnest(node, new UnnestAnalysis(mappings.buildOrThrow(), ordinalityField));
+            analysis.setUnnest(node, new UnnestAnalysis(mappingsBuilder.buildOrThrow(), ordinalityField));
 
-            return createAndAssignScope(node, scope, outputFields.build());
+            return createAndAssignScope(node, scope, outputFieldsBuilder.build());
         }
 
         @Override