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README.misc_utils |
Miscellaneous utility functions for PostgreSQL. Copyright (C) 1999, Massimo Dal Zotto <dz@cs.unitn.it> This software is distributed under the GNU General Public License either version 2, or (at your option) any later version. query_limit(n) sets a limit on the maximum numbers of query returned from a backend. It can be used to limit the result size retrieved by the application for poor input data or to avoid accidental table product while playying with sql. backend_pid() return the pid of our corresponding backend. unlisten(relname) unlisten from a relation or from all relations if the argument is null, empty or '*'. It is now obsoleted by the new unlisten command but still useful if you want unlisten a name computed by the query. Note that a listen/notify relname can be any ascii string, not just valid relation names. min(x,y) max(x,y) return the min or max bteween two integers. assert_enable(bool) enable/disable assert checkings in the backend, if it has been compiled with USE_ASSERT_CHECKING. assert_test(bool) test the assert enable/disable code, if the backend has been compiled with ASSERT_CHECKING_TEST. -- Massimo Dal Zotto <dz@cs.unitn.it>