mirror of
				https://github.com/postgres/postgres.git
				synced 2025-11-03 00:08:23 -05:00 
			
		
		
		
	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.
		
			
				
	
	
		
			33 lines
		
	
	
		
			814 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
		
			814 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
/* contrib/test_parser/test_parser--1.0.sql */
 | 
						|
 | 
						|
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
 | 
						|
\echo Use "CREATE EXTENSION test_parser" to load this file. \quit
 | 
						|
 | 
						|
CREATE FUNCTION testprs_start(internal, int4)
 | 
						|
RETURNS internal
 | 
						|
AS 'MODULE_PATHNAME'
 | 
						|
LANGUAGE C STRICT;
 | 
						|
 | 
						|
CREATE FUNCTION testprs_getlexeme(internal, internal, internal)
 | 
						|
RETURNS internal
 | 
						|
AS 'MODULE_PATHNAME'
 | 
						|
LANGUAGE C STRICT;
 | 
						|
 | 
						|
CREATE FUNCTION testprs_end(internal)
 | 
						|
RETURNS void
 | 
						|
AS 'MODULE_PATHNAME'
 | 
						|
LANGUAGE C STRICT;
 | 
						|
 | 
						|
CREATE FUNCTION testprs_lextype(internal)
 | 
						|
RETURNS internal
 | 
						|
AS 'MODULE_PATHNAME'
 | 
						|
LANGUAGE C STRICT;
 | 
						|
 | 
						|
CREATE TEXT SEARCH PARSER testparser (
 | 
						|
    START    = testprs_start,
 | 
						|
    GETTOKEN = testprs_getlexeme,
 | 
						|
    END      = testprs_end,
 | 
						|
    HEADLINE = pg_catalog.prsd_headline,
 | 
						|
    LEXTYPES = testprs_lextype
 | 
						|
);
 |