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458857cc9d
We have seen one too many reports of people trying to use 9.1 extension files in the old-fashioned way of sourcing them in psql. Not only does that usually not work (due to failure to substitute for MODULE_PATHNAME and/or @extschema@), but if it did work they'd get a collection of loose objects not an extension. To prevent this, insert an \echo ... \quit line that prints a suitable error message into each extension script file, and teach commands/extension.c to ignore lines starting with \echo. That should not only prevent any adverse consequences of loading a script file the wrong way, but make it crystal clear to users that they need to do it differently now. Tom Lane, following an idea of Andrew Dunstan's. Back-patch into 9.1 ... there is not going to be much value in this if we wait till 9.2.
45 lines
1.4 KiB
SQL
45 lines
1.4 KiB
SQL
/* contrib/fuzzystrmatch/fuzzystrmatch--1.0.sql */
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-- complain if script is sourced in psql, rather than via CREATE EXTENSION
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\echo Use "CREATE EXTENSION fuzzystrmatch" to load this file. \quit
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CREATE FUNCTION levenshtein (text,text) RETURNS int
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AS 'MODULE_PATHNAME','levenshtein'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION levenshtein (text,text,int,int,int) RETURNS int
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AS 'MODULE_PATHNAME','levenshtein_with_costs'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION levenshtein_less_equal (text,text,int) RETURNS int
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AS 'MODULE_PATHNAME','levenshtein_less_equal'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION levenshtein_less_equal (text,text,int,int,int,int) RETURNS int
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AS 'MODULE_PATHNAME','levenshtein_less_equal_with_costs'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION metaphone (text,int) RETURNS text
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AS 'MODULE_PATHNAME','metaphone'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION soundex(text) RETURNS text
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AS 'MODULE_PATHNAME', 'soundex'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION text_soundex(text) RETURNS text
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AS 'MODULE_PATHNAME', 'soundex'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION difference(text,text) RETURNS int
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AS 'MODULE_PATHNAME', 'difference'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION dmetaphone (text) RETURNS text
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AS 'MODULE_PATHNAME', 'dmetaphone'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE FUNCTION dmetaphone_alt (text) RETURNS text
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AS 'MODULE_PATHNAME', 'dmetaphone_alt'
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LANGUAGE C IMMUTABLE STRICT;
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