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ae90ffada4
This worked fine for superusers, but not for ordinary users trying to cancel their own processes. Tweak the order the checks are done in so that we correctly return SIGNAL_BACKEND_ERROR (which current callers know to ignore without erroring out) so that an ordinary user can loop through a resultset without fearing that a process might exit in the middle of said looping -- causing the remaining processes to go unsignalled. Incidentally, the last in-core caller of IsBackendPid() is now gone. However, the function is exported and must remain in place, because there are plenty of callers in external modules. Author: Josh Kupershmidt Reviewed by Noah Misch |
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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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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/.