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This restriction seems to have come about due to some fuzzy thinking: in commit 9139aa19423b we were adding a restriction against ADD constraint ONLY on partitioned tables (which is sensible) and apparently we thought the DROP case had to be symmetrical. However, it isn't, and the comments about it are mistaken about the effect it would have. Remove this limitation. There have been no reports of users bothered by this limitation, so I'm not backpatching it just yet. We can revisit this decision later, as needed. Reviewed-by: Amit Langote <amitlangote09@gmail.com> Discussion: https://postgr.es/m/202409261752.nbvlawkxsttf@alvherre.pgsql Discussion: https://postgr.es/m/7682253a-6f79-6a92-00aa-267c4c412870@lab.ntt.co.jp (about commit 9139aa19423b, previously not registered)
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.