xiedeyantu commented on code in PR #4288:
URL: https://github.com/apache/calcite/pull/4288#discussion_r2032109262
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core/src/main/java/org/apache/calcite/rex/RexBuilder.java:
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@@ -1918,31 +1918,24 @@ public RexLiteral makeZeroLiteral(RelDataType type) {
}
public RexNode makeZeroForNestedType(RelDataType type) {
+ SqlOperator op;
switch (type.getSqlTypeName()) {
case ARRAY:
- ArraySqlType arrayType = (ArraySqlType) type;
- RexNode zeroElement =
makeZeroForNestedType(arrayType.getComponentType());
- return makeCall(type, SqlStdOperatorTable.ARRAY_VALUE_CONSTRUCTOR,
- ImmutableList.of(zeroElement));
+ op = SqlStdOperatorTable.ARRAY_VALUE_CONSTRUCTOR;
Review Comment:
When using CAST, may need to write something like ARRAY[]::INTEGER? I may
not be clear about the correct way to write it, but I think it need to write
all types.
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