[GitHub] [spark] cloud-fan commented on a diff in pull request #34900: [SPARK-37643][SQL] when charVarcharAsString is true, char datatype partition table query incorrect

[GitBox <gi...@apache.org>]

cloud-fan commented on code in PR #34900:
URL: https://github.com/apache/spark/pull/34900#discussion_r844825703


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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -4082,18 +4082,21 @@ object ApplyCharTypePadding extends Rule[LogicalPlan] {
 
         // String literal is treated as char type when it's compared to a char type column.
         // We should pad the shorter one to the longer length.
-        case b @ BinaryComparison(e @ AttrOrOuterRef(attr), lit) if lit.foldable =>
+        case b @ BinaryComparison(e @ AttrOrOuterRef(attr), lit)

Review Comment:
   do you know why it's a problem only for partition predicates, not normal predicates?



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