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Previously we disallowed pushing down quals to WHERE in the presence of grouping sets. That's overly restrictive. We now instead copy quals to WHERE if applicable, leaving the one in HAVING in place. That's because, at that stage of the planning process, it's nontrivial to determine if it's safe to remove the one in HAVING. Author: Andrew Gierth Discussion: 874mkt3l59.fsf@news-spur.riddles.org.uk Backpatch: 9.5, where grouping sets were introduced. This isn't exactly a bugfix, but it seems better to keep the branches in sync at this point.
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.