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planner: support out join in broadcast join (#18988) #19664
planner: support out join in broadcast join (#18988) #19664
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
/run-all-tests |
@windtalker please accept the invitation then you can push to the cherry-pick pull requests. |
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LGTM
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LGTM
/merge |
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/merge |
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/run-all-tests |
@ti-srebot merge failed. |
/run-all-tests |
@ti-srebot merge failed. |
/merge |
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/run-all-tests |
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@ti-srebot merge failed. |
/merge |
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@ti-srebot merge failed. |
/merge |
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/run-all-tests |
/run-all-tests |
@ti-srebot merge failed. |
/merge |
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/run-all-tests |
@ti-srebot merge failed. |
/merge |
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@zz-jason I can reproduce a data race consistently, I'll invesitgate the root cause ASAP, retrying merge won't help in this case. |
This data race seems to be introduced by #18819 |
/run-all-tests |
@ti-srebot merge failed. |
cherry-pick #18988 to release-4.0
What problem does this PR solve?
Problem Summary:
TiFlash support broadcast join, and TiDB could push down joins to TiFlash to improve join queries, however, it only support inner join, for left/right join, TiDB can not push down to TiFlash.
What is changed and how it works?
Push down left/right join to TiFlash since it already support left/right join in TiFlash.
Related changes
Check List
Tests
Side effects
Release note