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Commit b437571714 added support for parallel builds for BRIN indexes, using code similar to BTREE parallel builds, and also a new tuplesort variant. This commit simplifies the new code in two ways: * The "spool" grouping tuplesort and the heap/index is not necessary. The heap/index are available as separate arguments, causing confusion. So remove the spool, and use the tuplesort directly. * The new tuplesort variant does not need the heap/index, as it sorts simply by the range block number, without accessing the tuple data. So simplify that too. Initial report and patch by Ranier Vilela, further cleanup by me. Author: Ranier Vilela Discussion: https://postgr.es/m/CAEudQAqD7f2i4iyEaAz-5o-bf6zXVX-AkNUBm-YjUXEemaEh6A%40mail.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. Copyright and license information can be found in the file COPYRIGHT. General documentation about this version of PostgreSQL can be found at: https://www.postgresql.org/docs/devel/ In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/installation.html The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.