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branch-2.1: [improvement](statistics)Add session variable for partition sample count. #48218 #49092

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Merged
yiguolei merged 1 commit into from
Mar 14, 2025
Merged

branch-2.1: [improvement](statistics)Add session variable for partition sample count. #48218 #49092

yiguolei merged 1 commit into from
Mar 14, 2025

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@github-actions github-actions bot commented Mar 14, 2025

Cherry-picked from #48218

@Jibing-Li
[improvement](statistics)Add session variable for partition sample co…
06e2b9f 
…unt. (#48218)

### What problem does this PR solve?
The previous pr (#46534) control the
memory use when sample analyzing a large partition table.
This PR make the maximum rows and partition count to sample
configurable. User could set the value larger if the NDV is not accurate
enough.
@github-actions github-actions bot requested a review from yiguolei as a code owner March 14, 2025 10:03
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Thearas commented Mar 14, 2025

Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

  1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
  2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
  3. What features were added. Why was this function added?
  4. Which code was refactored and why was this part of the code refactored?
  5. Which functions were optimized and what is the difference before and after the optimization?

@dataroaring dataroaring reopened this Mar 14, 2025
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Thearas commented Mar 14, 2025

run buildall

@yiguolei yiguolei merged commit d0f6edd into branch-2.1 Mar 14, 2025
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@github-actions github-actions bot deleted the auto-pick-48218-branch-2.1 branch March 14, 2025 12:43
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@Thearas @yiguolei @dataroaring @Jibing-Li