gengliangwang commented on code in PR #37486:
URL: https://github.com/apache/spark/pull/37486#discussion_r944169332
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
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@@ -1795,9 +1795,9 @@ class AstBuilder extends SqlBaseParserBaseVisitor[AnyRef]
with SQLConfHelper wit
cast
case SqlBaseParser.TRY_CAST =>
- // `TryCast` can only be user-specified and we don't need to set the
USER_SPECIFIED_CAST
- // tag, which is only used by `Cast`
- TryCast(expression(ctx.expression), dataType)
+ val cast = Cast(expression(ctx.expression), dataType, evalMode =
EvalMode.TRY)
+ cast.setTagValue(Cast.USER_SPECIFIED_CAST, true)
Review Comment:
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/package.scala#L122
here it only matches CAST
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