yuexing commented on code in PR #51013:
URL: https://github.com/apache/spark/pull/51013#discussion_r2111481718
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sql/core/src/main/scala/org/apache/spark/sql/execution/QueryExecution.scala:
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@@ -215,6 +216,14 @@ class QueryExecution(
}
def optimizedPlan: LogicalPlan = lazyOptimizedPlan.get
+ // Eliminate SubqueryAliases from the optimized plan to help correct the
explain result.
+ def optimizedPlanWithoutSubqueries: LogicalPlan = {
+ optimizedPlan match {
+ case s: CreateDataSourceTableAsSelectCommand =>
+ s.copy(query = EliminateSubqueryAliases(s.query))
Review Comment:
because EliminateSubqueryAliases doesn't handle Command. That's why we have
this unexpected explain result.
- CreateDataSourceTableAsSelectCommand as logic plan,
EliminateSubqueryAliases doesn't handle command.query
- ExecutedCommandExec(cmd=CreateDataSourceTableAsSelectCommand) as
physical plan, upon run will create a new QueryExecution with command.query.
This is the time execution gets EliminateSubqueryAliases (as well as other
optimization)
@LuciferYang
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