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.
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 of two integers.
--
Massimo Dal Zotto <dz@cs.unitn.it>
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