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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/03/20 16:15:34 UTC
[GitHub] [spark] maryannxue commented on issue #27971: [SPARK-31206][SQL]
AQE should not use the same SubqueryExec when reuse is off
maryannxue commented on issue #27971: [SPARK-31206][SQL] AQE should not use the same SubqueryExec when reuse is off
URL: https://github.com/apache/spark/pull/27971#issuecomment-601784345
Strictly speaking it's not reuse. It's the same subquery expression.
Let's fix the non-aqe subquery planning to avoid compiling the same subquery expression twice.
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