80 lines
3.1 KiB
MySQL
80 lines
3.1 KiB
MySQL
-- string_io.sql --
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--
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-- SQL code to define the new string I/O 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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-- Define the new output functions.
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--
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create function c_charout(opaque) returns int4
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as 'MODULE_PATHNAME'
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language 'c';
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create function c_textout(opaque) returns int4
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as 'MODULE_PATHNAME'
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language 'c';
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create function c_varcharout(opaque) returns int4
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as 'MODULE_PATHNAME'
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language 'c';
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-- This is not needed because escapes are handled by the parser
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--
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-- create function c_textin(opaque)
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-- returns text
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-- as 'MODULE_PATHNAME'
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-- language 'c';
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-- Define a function which sets the new output routines for char types.
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--
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-- select c_mode();
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--
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create function c_mode() returns text
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as 'update pg_type set typoutput=''c_textout'' where typname=''SET'';
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update pg_type set typoutput=''c_varcharout'' where typname=''bpchar'';
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update pg_type set typoutput=''c_textout'' where typname=''bytea'';
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update pg_type set typoutput=''c_charout'' where typname=''char'';
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update pg_type set typoutput=''c_textout'' where typname=''text'';
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update pg_type set typoutput=''c_textout'' where typname=''unknown'';
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update pg_type set typoutput=''c_varcharout'' where typname=''varchar'';
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select ''c_mode''::text;'
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language 'sql';
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-- Define a function which restores the standard routines for char types.
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--
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-- select pg_mode();
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--
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create function pg_mode() returns text
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as 'update pg_type set typoutput=''textout'' where typname=''SET'';
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update pg_type set typoutput=''varcharout'' where typname=''bpchar'';
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update pg_type set typoutput=''textout'' where typname=''bytea'';
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update pg_type set typoutput=''charout'' where typname=''char'';
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update pg_type set typoutput=''textout'' where typname=''text'';
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update pg_type set typoutput=''textout'' where typname=''unknown'';
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update pg_type set typoutput=''varcharout'' where typname=''varchar'';
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select ''pg_mode''::text;'
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language 'sql';
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-- Use these to do the changes manually.
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--
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-- update pg_type set typoutput='textout' where typname='SET';
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-- update pg_type set typoutput='varcharout' where typname='bpchar';
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-- update pg_type set typoutput='textout' where typname='bytea';
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-- update pg_type set typoutput='charout' where typname='char';
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-- update pg_type set typoutput='textout' where typname='text';
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-- update pg_type set typoutput='textout' where typname='unknown';
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-- update pg_type set typoutput='varcharout' where typname='varchar';
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--
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-- update pg_type set typoutput='c_textout' where typname='SET';
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-- update pg_type set typoutput='c_varcharout' where typname='bpchar';
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-- update pg_type set typoutput='c_textout' where typname='bytea';
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-- update pg_type set typoutput='c_charout' where typname='char';
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-- update pg_type set typoutput='c_textout' where typname='text';
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-- update pg_type set typoutput='c_textout' where typname='unknown';
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-- update pg_type set typoutput='c_varcharout' where typname='varchar';
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-- end of file
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