ATK-4732 : preserve withIsNull when splitting OR filters - #3919
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Rebuilt per-table OR/AND nodes dropped IS NULL flags, so canPush treated IS NULL OR col=? as a normal predicate and pushed it under LEFT JOIN. Co-authored-by: Cursor <cursoragent@cursor.com>
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Rebuilt per-table OR/AND nodes dropped IS NULL flags, so canPush treated IS NULL OR col=? as a normal predicate and pushed it under LEFT JOIN.
Reason:
BUG: ATK-4732
Type:
BUG/Improve
Influences：
fix ATK-4732