ydb/yql/essentials/tests/sql/suites/except/except_assoc.sql, branch oidc-1.2.5-devMirror of YDB github reposhttps://code.mastervirt.ru/ydb/atom?h=oidc-1.2.5-dev2025-07-09T11:38:43ZYQL-17269: Support UNION/INTERSECT/EXCEPT combinations2025-07-09T11:38:43Zvitya-smirnovvitya-smirnov@yandex-team.com2025-07-09T11:16:01Zurn:sha1:59c3167c208900bb714ff5cc477476e3ab14f4f0
Introduce `UNION` and `INTERSECT/EXCEPT` grammar rules
for precedence. Rewrote `Build` procedure into `BuildStmt`,
`BuildUnion`, `BuildIntersection`. Added tests, modify format.
It took a lot of time trying to adapt the existing `Build` procedure.
The I noticed that the logic for `union` and `intersection` is
different, since `union` groups arguments into bundles, but
`intersection` is a strictly binary operation.
commit_hash:70008ae3c2603364b6dfbeeb189fdc7f5237433d