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[feature](nereids) eliminate cascading outer join #23754
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| private static final class JoinSlotCoverageChecker { | ||
| /** |
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pls add this into case track
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PR approved by anyone and no changes requested. |
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PR approved by at least one committer and no changes requested. |
…)" This reverts commit 5dc46ef.
Proposed changes
after eliminate outer join, create is-not-null predicate, and then this is-not-null predicate can be used to eliminate descendant outer join. the newly created is-not-null predicate will be eliminated in EliminateNotNull rule.
Issue Number: close #xxx
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...