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- Change vacuum_cleanup_index_scale_factor GUC to PGC_USERSET. vacuum_cleanup_index_scale_factor GUC was defined as PGC_SIGHUP. But this GUC affects not only autovacuum. So it might be useful to change it from user session in order to influence manually runned VACUUM. - Add missing tab-complete support for vacuum_cleanup_index_scale_factor reloption. - Fix condition for B-tree index cleanup. Zero value of vacuum_cleanup_index_scale_factor means that user wants B-tree index cleanup to be never skipped. - Documentation and comment improvements Authors: Justin Pryzby, Alexander Korotkov, Liudmila Mantrova Reviewed by: all authors and Robert Haas Discussion: https://www.postgresql.org/message-id/flat/20180502023025.GD7631%40telsasoft.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/.