d7c04db27a
d69d45a5a changed how em_is_child members are stored in EquivalenceClasses. Children are no longer stored in the ec_members list. optimizer/README mentioned that most operations "should ignore child members", but that felt a little untrue now since child members are now stored in a separate place, they simply won't be found by the normal means of looking (a foreach loop over ec_members), and if you don't find them, there's technically no need to "ignore" them. Here we tweak the wording slightly to reflect the new storage location for child members. Reported-by: Amit Langote <amitlangote09@gmail.com> Author: Amit Langote <amitlangote09@gmail.com> Author: David Rowley <dgrowleyml@gmail.com> Discussion: https://postgr.es/m/CA+HiwqE8v=EuAP_3F_A2xn8zWx+nG_etW_Fe_DvKO-Fkx=+DdQ@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/.