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dbd35a972f
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.
74 lines
1.8 KiB
SQL
74 lines
1.8 KiB
SQL
/* contrib/xml2/xml2--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 xml2" to load this file. \quit
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--SQL for XML parser
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-- deprecated old name for xml_is_well_formed
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CREATE FUNCTION xml_valid(text) RETURNS bool
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AS 'xml_is_well_formed'
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LANGUAGE INTERNAL STRICT STABLE;
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CREATE FUNCTION xml_encode_special_chars(text) RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION xpath_string(text,text) RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION xpath_nodeset(text,text,text,text) RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION xpath_number(text,text) RETURNS float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION xpath_bool(text,text) RETURNS boolean
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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-- List function
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CREATE FUNCTION xpath_list(text,text,text) RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE FUNCTION xpath_list(text,text) RETURNS text
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AS 'SELECT xpath_list($1,$2,'','')'
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LANGUAGE SQL STRICT IMMUTABLE;
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-- Wrapper functions for nodeset where no tags needed
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CREATE FUNCTION xpath_nodeset(text,text)
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RETURNS text
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AS 'SELECT xpath_nodeset($1,$2,'''','''')'
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LANGUAGE SQL STRICT IMMUTABLE;
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CREATE FUNCTION xpath_nodeset(text,text,text)
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RETURNS text
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AS 'SELECT xpath_nodeset($1,$2,'''',$3)'
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LANGUAGE SQL STRICT IMMUTABLE;
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-- Table function
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CREATE FUNCTION xpath_table(text,text,text,text,text)
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RETURNS setof record
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT STABLE;
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-- XSLT functions
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CREATE FUNCTION xslt_process(text,text,text)
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RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT VOLATILE;
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-- the function checks for the correct argument count
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CREATE FUNCTION xslt_process(text,text)
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RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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