55 lines
1.1 KiB
MySQL
55 lines
1.1 KiB
MySQL
-- misc_utils.sql --
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--
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-- SQL code to define misc functions.
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--
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-- Copyright (c) 1998, Massimo Dal Zotto <dz@cs.unitn.it>
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--
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-- This file is distributed under the GNU General Public License
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-- either version 2, or (at your option) any later version.
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-- Return the pid of the backend.
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--
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-- Adjust this setting to control where the objects get created.
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SET search_path = public;
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CREATE OR REPLACE FUNCTION backend_pid()
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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-- Unlisten from a relation.
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--
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CREATE OR REPLACE FUNCTION "unlisten"(name)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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-- Unlisten from all relations for this backend.
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--
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CREATE OR REPLACE FUNCTION "unlisten"()
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RETURNS int4
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AS 'SELECT "unlisten"(''*'')'
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LANGUAGE 'SQL';
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-- min(x,y)
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--
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CREATE OR REPLACE FUNCTION min(int4,int4)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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-- max(x,y)
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--
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CREATE OR REPLACE FUNCTION max(int4,int4)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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-- Return the number of active listeners on a relation
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--
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CREATE OR REPLACE FUNCTION active_listeners(text)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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