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Commit 749a787c5b25ae33b3d4da0ef12aa05214aa73c7 bumped the extension version on all of these extensions already, and we haven't had a release since then, so we can make further changes without bumping the extension version again. Take this opportunity to mark all of the functions exported by these modules PARALLEL SAFE -- except for pg_trgm's set_limit(). Mark that one PARALLEL RESTRICTED, because it makes a persistent change to a GUC value. Note that some of the markings added by this commit don't have any effect; for example, gseg_picksplit() isn't likely to be mentioned explicitly in a query and therefore it's parallel-safety marking will never be consulted. But this commit just marks everything for consistency: if it were somehow used in a query, that would be fine as far as parallel query is concerned, since it does not consult any backend-private state, attempt to write data, etc. Andreas Karlsson, with a few revisions by me.
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/.