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When inserting a view referencing a foreign table that has WITH CHECK OPTION constraints, in single-insert mode postgres_fdw retrieves the data that was actually inserted on the remote side so that the WITH CHECK OPTION constraints are enforced with the data locally, but in batch-insert mode it cannot currently retrieve the data (except for the row first inserted through the view), resulting in enforcing the WITH CHECK OPTION constraints with the data passed from the core (except for the first-inserted row), which led to incorrect results when inserting into a view referencing a foreign table in which a remote BEFORE ROW INSERT trigger changes the rows inserted through the view so that they violate the view's WITH CHECK OPTION constraint. Also, the query inserting into the view caused an assertion failure in assert-enabled builds. Fix these by disabling batch insertion when inserting into such a view. Back-patch to v14 where batch insertion was added. Discussion: https://postgr.es/m/CAPmGK17LpbTZs4m4a_6THP54UBeK9fHvX8aVVA%2BC6yEZDZwQcg%40mail.gmail.com |
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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/.