Peter Eisentraut f80bedd52b Allow ALTER COLUMN SET EXPRESSION on virtual columns with CHECK constraints ... Previously, changing the generation expression of a virtual column was prohibited if the column was referenced by a CHECK constraint. This lifts that restriction. RememberAllDependentForRebuilding within ATExecSetExpression will rebuild all the dependent constraints, later ATPostAlterTypeCleanup queues the required AlterTableStmt operations for ALTER TABLE Phase 3 execution. Overall, ALTER COLUMN SET EXPRESSION on virtual columns may require scanning the table to re-verify any associated CHECK constraints, but it does not require a table rewrite in ALTER TABLE Phase 3. Author: jian he <jian.universality@gmail.com> Reviewed-by: Matheus Alcantara <matheusssilv97@gmail.com> Discussion: https://postgr.es/m/CACJufxH3VETr7orF5rW29GnDk3n1wWbOE3WdkHYd3iPGrQ9E_A@mail.gmail.com		2026-02-24 10:32:05 +01:00
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src	Allow ALTER COLUMN SET EXPRESSION on virtual columns with CHECK constraints	2026-02-24 10:32:05 +01:00
KNOWN_BUGS	Remove extra newlines at end and beginning of files, add missing newlines	2010-08-19 05:57:36 +00:00
Makefile	Remove distprep	2023-11-06 15:18:04 +01:00
MISSING_FEATURES	Remove extra newlines at end and beginning of files, add missing newlines	2010-08-19 05:57:36 +00:00
TODO	Change documentation references to PG website to use https: not http:	2017-05-20 21:50:47 -04:00