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[Enchancement](statistics) Support sampling collection of statistics(discard) - #18801
[Enchancement](statistics) Support sampling collection of statistics(discard)#18801weizhengte wants to merge 1 commit into
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TeamCity pipeline, clickbench performance test result: |
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f76082c to
fb6c6e8Compareweizhengte
commented
Apr 19, 2023
run buildall |
PR approved by anyone and no changes requested. |
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3b95274Compare3b95274 to
323a8c3Compareweizhengte
commented
Apr 20, 2023
run buildall |
weizhengte
commented
Apr 20, 2023
run clickbench |
weizhengte
commented
Apr 21, 2023
run p1 |
weizhengte
commented
Apr 21, 2023
This pr rebase has been done several times, and the pipeline clickbench has been stuck (Can't connect to MySQL), using the new pr #18880 |
Proposed changes
The syntax supports WITH and PROPERTIES, using the same syntax as before.
Column Statistics Collection Syntax:
Column histogram collection syntax:
Illustrate:
db_name.table_name.table_name, and multiple column names are separated by commas.TODO:
Incrementalstatistics see pr18653Issue Number: close #xxx
Problem summary
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Further comments
If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...