mihaibudiu commented on code in PR #5128:
URL: https://github.com/apache/calcite/pull/5128#discussion_r3691903302
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core/src/main/java/org/apache/calcite/adapter/enumerable/RexToLixTranslator.java:
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@@ -341,6 +341,54 @@ Expression translateCast(
return expressionHandlingSafe(convert3, safe, targetType);
}
+ /** Converts a ROW value to another ROW type, field by field. */
+ private Expression getRowConvertExpression(
+ RelDataType sourceType,
+ RelDataType targetType,
+ Expression operand,
+ ConstantExpression format) {
+ if (sourceType.getSqlTypeName() == SqlTypeName.NULL) {
Review Comment:
NULL is the type of the NULL literal.
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