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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.
40 lines
1.1 KiB
SQL
40 lines
1.1 KiB
SQL
/* contrib/pg_stat_statements/pg_stat_statements--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 pg_stat_statements" to load this file. \quit
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-- Register functions.
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CREATE FUNCTION pg_stat_statements_reset()
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RETURNS void
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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CREATE FUNCTION pg_stat_statements(
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OUT userid oid,
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OUT dbid oid,
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OUT query text,
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OUT calls int8,
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OUT total_time float8,
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OUT rows int8,
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OUT shared_blks_hit int8,
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OUT shared_blks_read int8,
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OUT shared_blks_written int8,
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OUT local_blks_hit int8,
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OUT local_blks_read int8,
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OUT local_blks_written int8,
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OUT temp_blks_read int8,
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OUT temp_blks_written int8
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)
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RETURNS SETOF record
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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-- Register a view on the function for ease of use.
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CREATE VIEW pg_stat_statements AS
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SELECT * FROM pg_stat_statements();
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GRANT SELECT ON pg_stat_statements TO PUBLIC;
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-- Don't want this to be available to non-superusers.
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REVOKE ALL ON FUNCTION pg_stat_statements_reset() FROM PUBLIC;
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