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096f2132c6
infer_arbiter_indexes failed to renumber varnos in index expressions or predicates that it got from the catalogs. This escaped detection up to now because the stored varnos in such trees will be 1, and an INSERT's result relation is usually the first rangetable entry, so that that was fine. However, in cases such as inserting through an updatable view, it's not fine, leading to failure to match the expressions to the query with ensuing "there is no unique or exclusion constraint matching the ON CONFLICT specification" errors. Fix by copy-and-paste from get_relation_info(). Per bug #18502 from Michael Wang. Back-patch to all supported versions. Discussion: https://postgr.es/m/18502-545b53f5b81e54e0@postgresql.org |
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| README.git | ||
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/.