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A new-style SQL function can contain a parse-time dependency on a unique index, much as views and matviews can (such cases arise from GROUP BY and ON CONFLICT clauses, for example). To dump and restore such a function successfully, pg_dump must postpone the function until after the unique index is created, which will happen in the post-data part of the dump. Therefore we have to remove the normal constraint that functions are dumped in pre-data. Add code similar to the existing logic that handles this for matviews. I added test cases for both as well, since code coverage tests showed that we weren't testing the matview logic. Per report from Sami Imseih. Back-patch to v14 where new-style SQL functions came in. Discussion: https://postgr.es/m/2C1933AB-C2F8-499B-9D18-4AC1882256A0@amazon.com
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. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.