Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/14034#discussion_r69586217
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala
---
@@ -46,6 +46,20 @@ trait CheckAnalysis extends PredicateHelper {
}).length > 1
}
+ private def checkLimitClause(limitExpr: Expression): Unit = {
+ if (!limitExpr.foldable) {
--- End diff --
If it must be foldable, can we just use `int` as limit instead of
expression?
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