85 lines
3.1 KiB
MySQL
85 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(bpchar)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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CREATE FUNCTION c_textout(text)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C';
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CREATE FUNCTION c_varcharout(varchar)
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RETURNS cstring
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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(cstring)
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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()
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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()
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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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