cjj2010 commented on code in PR #4912:
URL: https://github.com/apache/calcite/pull/4912#discussion_r3165439888
##########
core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java:
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@@ -7530,7 +7531,7 @@ private SqlNode expandExprFromJoin(SqlJoin join,
SqlIdentifier identifier, Selec
final SqlIdentifier exp =
new SqlIdentifier(
ImmutableList.of(child.name, name),
- identifier.getParserPosition());
+ SqlParserPos.ZERO);
Review Comment:
Thank you for your suggestion. The original plan was indeed inadequate. I
have now revised it to completely separate validation from expansion —
validating the original AST once before expansion, and not performing
validation during expansion.
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