[CALCITE-5939] Support join derivability mv rewrite for unifyRule#4154
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suibianwanwank wants to merge 1 commit intoapache:mainfrom
Open
[CALCITE-5939] Support join derivability mv rewrite for unifyRule#4154suibianwanwank wants to merge 1 commit intoapache:mainfrom
suibianwanwank wants to merge 1 commit intoapache:mainfrom
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This PR supports rewriting between different types of Join based on Join UnifyRule. We add is not null condition to the non-nullable field to filter the extra rows produced by the outer join.