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[SPARK-40697][SQL] Add read-side char padding to cover external data files #38151

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[SPARK-40697][SQL] Add read-side char padding to cover external data files #38151

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d2f8d8a
add read-side char/varchar handling to cover external data files
cloud-fan Oct 7, 2022
041ddd0
fix incline CTE
cloud-fan Oct 7, 2022
9635442
fix tests
cloud-fan Oct 10, 2022
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fix incline CTE
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@cloud-fan
cloud-fan committed Oct 7, 2022
commit 041ddd00a59c90a896b7e68ef03fecc74c0c8079
6 changes: 5 additions & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/InlineCTE.scala
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Expand Up @@ -128,7 +128,11 @@ case class InlineCTE(alwaysInline: Boolean = false) extends Rule[LogicalPlan] {
val ctePlan = DeduplicateRelations(
Join(cteDef.child, cteDef.child, Inner, None, JoinHint(None, None))).children(1)
val projectList = ref.output.zip(ctePlan.output).map { case (tgtAttr, srcAttr) =>
Alias(srcAttr, tgtAttr.name)(exprId = tgtAttr.exprId)
if (srcAttr.semanticEquals(tgtAttr)) {
tgtAttr
} else {
Alias(srcAttr, tgtAttr.name)(exprId = tgtAttr.exprId)
}
}
Project(projectList, ctePlan)
}
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