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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.
17 lines
943 B
SQL
17 lines
943 B
SQL
/* contrib/earthdistance/earthdistance--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 earthdistance" to load this file. \quit
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ALTER EXTENSION earthdistance ADD function earth();
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ALTER EXTENSION earthdistance ADD type earth;
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ALTER EXTENSION earthdistance ADD function sec_to_gc(double precision);
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ALTER EXTENSION earthdistance ADD function gc_to_sec(double precision);
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ALTER EXTENSION earthdistance ADD function ll_to_earth(double precision,double precision);
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ALTER EXTENSION earthdistance ADD function latitude(earth);
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ALTER EXTENSION earthdistance ADD function longitude(earth);
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ALTER EXTENSION earthdistance ADD function earth_distance(earth,earth);
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ALTER EXTENSION earthdistance ADD function earth_box(earth,double precision);
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ALTER EXTENSION earthdistance ADD function geo_distance(point,point);
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ALTER EXTENSION earthdistance ADD operator <@>(point,point);
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