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Properly update the number of bits set in the bitmap after merging the filters in brin_bloom_union. This is mostly harmless, as the counter is used only in the output function, which means pageinspect may show incorrect information about the BRIN summary. The counter does not affect correctness. Discovered while adding a regression test comparing indexes built with and without parallelism. The parallel index builds exercise the union procedure when merging results from workers, which is otherwise very hard to do in a test. Which is why this went unnoticed until now. Backpatch through 14, where the BRIN bloom opclasses were introduced. Backpatch-through: 14 Discussion: https://postgr.es/m/1df00a66-db5a-4e66-809a-99b386a06d86%40enterprisedb.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/.