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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.
30 lines
1.3 KiB
SQL
30 lines
1.3 KiB
SQL
/* contrib/xml2/xml2--unpackaged--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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ALTER EXTENSION xml2 ADD function xslt_process(text,text);
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ALTER EXTENSION xml2 ADD function xslt_process(text,text,text);
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ALTER EXTENSION xml2 ADD function xpath_table(text,text,text,text,text);
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ALTER EXTENSION xml2 ADD function xpath_nodeset(text,text,text);
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ALTER EXTENSION xml2 ADD function xpath_nodeset(text,text);
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ALTER EXTENSION xml2 ADD function xpath_list(text,text);
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ALTER EXTENSION xml2 ADD function xpath_list(text,text,text);
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ALTER EXTENSION xml2 ADD function xpath_bool(text,text);
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ALTER EXTENSION xml2 ADD function xpath_number(text,text);
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ALTER EXTENSION xml2 ADD function xpath_nodeset(text,text,text,text);
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ALTER EXTENSION xml2 ADD function xpath_string(text,text);
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ALTER EXTENSION xml2 ADD function xml_encode_special_chars(text);
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ALTER EXTENSION xml2 ADD function xml_valid(text);
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-- xml_valid is now an alias for core xml_is_well_formed()
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CREATE OR REPLACE 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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-- xml_is_well_formed is now in core, not needed in extension.
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-- be careful to drop extension's copy not core's.
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DROP FUNCTION @extschema@.xml_is_well_formed(text);
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