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Posted to commits@doris.apache.org by "Kikyou1997 (via GitHub)" <gi...@apache.org> on 2023/06/20 07:12:53 UTC
[GitHub] [doris] Kikyou1997 opened a new pull request, #21020: [enhancement](nereids) Sampling when aggregate column stats
Kikyou1997 opened a new pull request, #21020:
URL: https://github.com/apache/doris/pull/21020
## Proposed changes
n the previous implementation, when aggregating partition statistics into column statistics, the calculation of distinct values (ndv) for the entire column was performed without using sampling, resulting in reduced efficiency of the sampling process.
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## Further comments
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[GitHub] [doris] morrySnow merged pull request #21020: [opt](stats) Sampling when aggregate column stats
Posted by "morrySnow (via GitHub)" <gi...@apache.org>.
morrySnow merged PR #21020:
URL: https://github.com/apache/doris/pull/21020
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[GitHub] [doris] github-actions[bot] commented on pull request #21020: [enhancement](nereids) Sampling when aggregate column stats
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #21020:
URL: https://github.com/apache/doris/pull/21020#issuecomment-1605860212
PR approved by at least one committer and no changes requested.
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[GitHub] [doris] Kikyou1997 commented on pull request #21020: [enhancement](nereids) Sampling when aggregate column stats
Posted by "Kikyou1997 (via GitHub)" <gi...@apache.org>.
Kikyou1997 commented on PR #21020:
URL: https://github.com/apache/doris/pull/21020#issuecomment-1598236629
run buildall
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[GitHub] [doris] github-actions[bot] commented on pull request #21020: [enhancement](nereids) Sampling when aggregate column stats
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #21020:
URL: https://github.com/apache/doris/pull/21020#issuecomment-1605860217
PR approved by anyone and no changes requested.
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