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This exposes the existing explain summary option to users to allow them to choose if they wish to have the planning time and totalled run time included in the EXPLAIN result. The existing default behavior is retained if SUMMARY is not specified- running explain without analyze will not print the summary lines (just the planning time, currently) while running explain with analyze will include the summary lines (both the planning time and the totalled execution time). Users who wish to see the summary information for plain explain can now use: EXPLAIN (SUMMARY ON) query; Users who do not want to have the summary printed for an analyze run can use: EXPLAIN (ANALYZE ON, SUMMARY OFF) query; With this, we can now also have EXPLAIN ANALYZE queries included in our regression tests by using: EXPLAIN (ANALYZE ON, TIMING OFF, SUMMARY off) query; I went ahead and added an example of this, which will hopefully not make the buildfarm complain. Author: Ashutosh Bapat Discussion: https://postgr.es/m/CAFjFpReE5z2h98U2Vuia8hcEkpRRwrauRjHmyE44hNv8-xk+XA@mail.gmail.com |
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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/.