mihaibudiu commented on code in PR #4131:
URL: https://github.com/apache/calcite/pull/4131#discussion_r1909683710
##########
core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java:
##########
@@ -3443,12 +3444,32 @@ private RexNode convertUsing(SqlValidatorNamespace
leftNamespace,
throw new AssertionError("field " + name + " is not found in "
+ rowType + " with " + nameMatcher);
}
+
+ fieldTypes.add(field.getType());
operands.add(
rexBuilder.makeInputRef(field.getType(),
offset + field.getIndex()));
offset += rowType.getFieldList().size();
}
- list.add(rexBuilder.makeCall(SqlStdOperatorTable.EQUALS, operands));
+
+ RelDataType resultType =
+ validator().getTypeCoercion().commonTypeForBinaryComparison(
+ fieldTypes.get(0), fieldTypes.get(1));
+ if (resultType == null) {
+ throw new IllegalArgumentException("Cannot compute compatible row
type: " + fieldTypes);
Review Comment:
I have made the code clearer - but by mistake I amended the commit instead
of adding a new one.
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