Minor: Add tests for using FilterExec when parquet was pushed down #12362
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alamb
commented
Sep 6, 2024
| 02)--TableScan: alltypes_plain projection=[id], partial_filters=[alltypes_plain.id > Int32(3)] | ||
| physical_plan | ||
| 01)CoalesceBatchesExec: target_batch_size=8192 | ||
| 02)--FilterExec: id@0 > 3 |
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The goal of #4028 is to remove this FilterExec
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Jefffrey
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Sep 6, 2024
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| statement ok | ||
| set datafusion.execution.parquet.pushdown_filters = true; |
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Is it worth setting this to false before creation of t explicitly, or reckon it's unnecessary and fine to rely on defaults?
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It is a good idea to make it explicit -- I will do so and add a comment about that (update in 2373f37)
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Thanks again @Jefffrey for your review |
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Which issue does this PR close?
Part of #4028
Rationale for this change
While reviewing #12135 from @itsjunetime I wanted to make sure everything was hooked up end to end and that the appropriate plan changes were done.
I figured I would write such tests as part of my review, though for some reason the PR doesn't actually improve these plans (I will comment on that separately).
What changes are included in this PR?
This adds "end to end" tests that show what should happen when parquet filter pushdown is enabled (specifically the FilterExec should be gone)
Are these changes tested?
yes, only tests
Are there any user-facing changes?
No, only tests