Adding REPACK introduced table-rewrite behavior that overlaps with VACUUM FULL and CLUSTER, but some documentation still mentioned only one of these commands or described the progress and locking behavior imprecisely. Clarify that table-rewriting operations, including REPACK, can change CTIDs. Also describe VACUUM FULL, CLUSTER, and REPACK consistently as table-rewriting operations for disk-space recovery where appropriate, document the pg_stat_progress_repack and compatibility pg_stat_progress_cluster views consistently, and clarify the ACCESS EXCLUSIVE locking behavior of REPACK, including CONCURRENTLY. Backpatch to v19, where REPACK was introduced. Author: Marcos Pegoraro <marcos@f10.com.br> Author: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/CAB-JLwaLcHyf=OnLnBsJEbdd57WjWPpK5T7iGFJvAQphjTZj_A@mail.gmail.com Backpatch-through: 19
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.
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General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/installation.html.
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