47f99a407d
Straight-forward index-level REINDEX is not supported with multiple jobs as we cannot control the concurrent processing of multiple indexes depending on the same relation. Instead, we dedicate the whole table to certain reindex job. Thus, if indexes in the lists belong to different tables, that gives us a fair level of parallelism. This commit teaches get_parallel_object_list() to fetch table names for indexes in the case of index-level REINDEX. The same tables are grouped together in the output order, and the list of indexes is also rebuilt to match that order. Later during processingof that list, we push indexes belonging to the same table into the same job. Discussion: https://postgr.es/m/CACG%3DezZU_VwDi-1PN8RUSE6mcYG%2BYx1NH_rJO4%2BKe-mKqLp%3DNw%40mail.gmail.com Author: Maxim Orlov, Svetlana Derevyanko, Alexander Korotkov Reviewed-by: Michael Paquier
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/.