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ALTER TABLE ... ALTER COLUMN ... DROP EXPRESSION

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Add an ALTER TABLE subcommand for dropping the generated property from
a column, per SQL standard.

Reviewed-by: Sergei Kornilov <sk@zsrv.org>
Discussion: https://www.postgresql.org/message-id/flat/2f7f1d9c-946e-0453-d841-4f38eb9d69b6%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-01-14 13:09:31 +01:00
parent d751ba5235
commit f595117e24
9 changed files with 326 additions and 4 deletions
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2
src/backend/catalog/sql_features.txt
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@@ -252,7 +252,7 @@ F381 Extended schema manipulation 03 ALTER TABLE statement: DROP CONSTRAINT clau
F382 Alter column data type YES
F383 Set column not null clause YES
F384 Drop identity property clause YES
F385 Drop column generation expression clause NO
F385 Drop column generation expression clause YES
F386 Set identity column generation clause YES
F391 Long identifiers YES
F392 Unicode escapes in identifiers YES