[SPARK-48307][SQL] InlineCTE should keep not-inlined relations in the original WithCTE node #46617
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amaliujia
reviewed
May 16, 2024
| outerCTEId.foreach { cteId => | ||
| val (_, _, outerRefMap) = cteMap(cteId) | ||
| outerRefMap(ref.cteId) += 1 | ||
| cteMap(cteId).recordOutgoingReference(ref.cteId) |
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I personally like to not hide the +1 implementation details here as I had troubles to understand it.
Or the function name can be IncreaseOutgoingReferenceByOne?
LuciferYang
approved these changes
May 20, 2024
viirya
reviewed
May 20, 2024
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/InlineCTESuite.scala
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Repartition? Do you mean Relation? |
viirya
approved these changes
May 20, 2024
…mizer/InlineCTESuite.scala Co-authored-by: Liang-Chi Hsieh <viirya@gmail.com>
It's Reparition, because we rely on shuffle reuse to reuse CTE relations. |
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What changes were proposed in this pull request?
I noticed an outdated comment in the rule
InlineCTEThis is not true anymore after #42036 . It's not a big deal as we replace not-inlined CTE relations with
Repartitionduring optimization, so it doesn't matter where we put theWithCTEnode with not-inlined CTE relations, as it will disappear eventually. But it's still better to keep it at its original place, as third-party rules may be sensitive about the plan shape.Why are the changes needed?
to keep the plan shape as much as can after inlining CTE relations.
Does this PR introduce any user-facing change?
no
How was this patch tested?
new test
Was this patch authored or co-authored using generative AI tooling?
no