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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>
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