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This adds a new "Memory:" line under the "Planning:" group (which currently only has "Buffers:") when the MEMORY option is specified. In order to make the reporting reasonably accurate, we create a separate memory context for planner activities, to be used only when this option is given. The total amount of memory allocated by that context is reported as "allocated"; we subtract memory in the context's freelists from that and report that result as "used". We use MemoryContextStatsInternal() to obtain the quantities. The code structure to show buffer usage during planning was not in amazing shape, so I (Álvaro) modified the patch a bit to clean that up in passing. Author: Ashutosh Bapat Reviewed-by: David Rowley, Andrey Lepikhov, Jian He, Andy Fan Discussion: https://www.postgresql.org/message-id/CAExHW5sZA=5LJ_ZPpRO-w09ck8z9p7eaYAqq3Ks9GDfhrxeWBw@mail.gmail.com |
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| configure | ||
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| README | ||
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/.