[SPARK-20688][SQL] correctly check analysis for scalar sub-queries
In `CheckAnalysis`, we should call `checkAnalysis` for `ScalarSubquery` at the beginning, as later we will call `plan.output` which is invalid if `plan` is not resolved. new regression test Author: Wenchen Fan <wenchen@databricks.com> Closes #17930 from cloud-fan/tmp. (cherry picked from commit 789bdbe3) Signed-off-by:Wenchen Fan <wenchen@databricks.com>
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- sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala 2 additions, 1 deletion...rg/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala
- sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala 9 additions, 1 deletion...e/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
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