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Starting with commit f0e44751d717, ExecConstraints was in charge of running the partition constraint; commit 19c47e7c8202 modified that so that caller could request to skip that checking depending on some conditions, but that commit and 15ce775faa42 together introduced a small bug there which caused ExecInsert to request skipping the constraint check but have this not be honored -- in effect doing the check twice. This could have been fixed in a very small patch, but on further analysis of the involved function and its callsites, it turns out to be simpler to give the responsibility of checking the partition constraint fully to the caller, and return ExecConstraints to its original (pre-partitioning) shape where it only checked tuple descriptor-related constraints. Each caller must do partition constraint checking on its own schedule, which is more convenient after commit 2f178441044 anyway. Reported-by: David Rowley Author: David Rowley, Álvaro Herrera Reviewed-by: Amit Langote, Amit Khandekar, Simon Riggs Discussion: https://postgr.es/m/CAKJS1f8w8+awsxgea8wt7_UX8qzOQ=Tm1LD+U1fHqBAkXxkW2w@mail.gmail.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/.