5092aae431
bms_union() causes a new set to be allocated. What this caller needs is members added to an existing set. bms_add_members() is the tool for that job. This is just a matter of fixing an inefficiency due to surplus memory allocations. No bugs being fixed. The only other place I found that might be valid to apply this change is in markNullableIfNeeded(), but I opted not to do that due to the risk to reward ratio not looking favorable. The risk being that there *could* be another pointer pointing to the Bitmapset. Author: David Rowley <dgrowleyml@gmail.com> Reviewed-by: Greg Burd <greg@burd.me> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/CAApHDvoCcoS-p5tZNJLTxFOKTYNjqVh7Dwf+5ikDUBwnvWftRw@mail.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/.