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feat: Improve performance of thetasketch dinstinct #1102

Merged
merged 9 commits into from
Jul 25, 2023
Merged

feat: Improve performance of thetasketch dinstinct #1102

merged 9 commits into from
Jul 25, 2023

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Rachelint
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@Rachelint Rachelint commented Jul 24, 2023 •
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Rationale

Our impl for thetasketch_dinstinct udf is so rough, that leading to the bad performance.
The aggregate stage cost 17s in our production...

In this pr, I refactor the impl thetasketch_dinstinct for the better performance, now the aggregate stage will just cost 6s for the same sample sql.

Detailed Changes

  • Update hyperloglog crate for better performance.
  • Use DatumView instead of DfScalarValue in HllDistinct to eliminate the unnecessary clone.
  • Fix related test.

Test Plan

Test by new ut and integration.

ShiKaiWi
ShiKaiWi reviewed Jul 24, 2023
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ShiKaiWi
ShiKaiWi approved these changes Jul 25, 2023
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LGTM

@ShiKaiWi ShiKaiWi merged commit da7a799 into apache:main Jul 25, 2023
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@ShiKaiWi ShiKaiWi mentioned this pull request Jul 18, 2023
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@Rachelint @ShiKaiWi