rdblue commented on a change in pull request #23606: [SPARK-26666][SQL] Support
DSv2 overwrite and dynamic partition overwrite.
URL: https://github.com/apache/spark/pull/23606#discussion_r251259893
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -159,6 +159,7 @@ class Analyzer(
Batch("Resolution", fixedPoint,
ResolveTableValuedFunctions ::
ResolveRelations ::
+ ResolveOutputRelation ::
Review comment:
I had to move this higher in the batch so that outputs were resolved before
the overwrite expression (see analysis tests for `OverwriteByExpression`).
Otherwise, the expression would be resolved against the overwrite's child query.
Another approach is to change how the expression's attributes are resolved
to use the table instead of the query. But changing expression resolution to
use something other than children seemed too intrusive.
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