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### What changes were proposed in this pull request? This is a followup from https://github.com/apache/spark/pull/32547#discussion_r639916474, where for LEFT ANTI join, we do not need to depend on `loaded` variable, as in `codegenAnti` we only load `streamedAfter` no more than once (i.e. assign column values from streamed row which are not used in join condition). ### Why are the changes needed? Avoid unnecessary processing in code-gen (though it's just `boolean $loaded = false;`, and `if (!$loaded) { $loaded = true; }`). ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Existing unite tests in `ExistenceJoinSuite`. Closes #32681 from c21/join-followup. Authored-by: Cheng Su <chengsu@fb.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com> |
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