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Enhanced cycle mark values

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Per SQL:202x draft, in the CYCLE clause of a recursive query, the
cycle mark values can be of type boolean and can be omitted, in which
case they default to TRUE and FALSE.

Reviewed-by: Vik Fearing <vik@postgresfriends.org>
Discussion: https://www.postgresql.org/message-id/flat/db80ceee-6f97-9b4a-8ee8-3ba0c58e5be2@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2021-02-27 08:11:14 +01:00
parent 4e90052c46
commit f4adc41c4f
7 changed files with 144 additions and 47 deletions
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src/backend/catalog/sql_features.txt
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@@ -425,6 +425,7 @@ T121 WITH (excluding RECURSIVE) in query expression YES
T122 WITH (excluding RECURSIVE) in subquery YES
T131 Recursive query YES
T132 Recursive query in subquery YES
T133 Enhanced cycle mark values YES SQL:202x draft
T141 SIMILAR predicate YES
T151 DISTINCT predicate YES
T152 DISTINCT predicate with negation YES