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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.
108 lines
2.3 KiB
SQL
108 lines
2.3 KiB
SQL
/* contrib/pageinspect/pageinspect--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 pageinspect" to load this file. \quit
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--
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-- get_raw_page()
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--
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CREATE FUNCTION get_raw_page(text, int4)
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RETURNS bytea
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AS 'MODULE_PATHNAME', 'get_raw_page'
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LANGUAGE C STRICT;
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CREATE FUNCTION get_raw_page(text, text, int4)
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RETURNS bytea
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AS 'MODULE_PATHNAME', 'get_raw_page_fork'
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LANGUAGE C STRICT;
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--
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-- page_header()
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--
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CREATE FUNCTION page_header(IN page bytea,
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OUT lsn text,
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OUT tli smallint,
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OUT flags smallint,
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OUT lower smallint,
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OUT upper smallint,
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OUT special smallint,
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OUT pagesize smallint,
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OUT version smallint,
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OUT prune_xid xid)
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AS 'MODULE_PATHNAME', 'page_header'
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LANGUAGE C STRICT;
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--
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-- heap_page_items()
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--
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CREATE FUNCTION heap_page_items(IN page bytea,
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OUT lp smallint,
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OUT lp_off smallint,
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OUT lp_flags smallint,
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OUT lp_len smallint,
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OUT t_xmin xid,
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OUT t_xmax xid,
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OUT t_field3 int4,
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OUT t_ctid tid,
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OUT t_infomask2 integer,
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OUT t_infomask integer,
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OUT t_hoff smallint,
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OUT t_bits text,
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OUT t_oid oid)
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RETURNS SETOF record
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AS 'MODULE_PATHNAME', 'heap_page_items'
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LANGUAGE C STRICT;
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--
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-- bt_metap()
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--
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CREATE FUNCTION bt_metap(IN relname text,
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OUT magic int4,
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OUT version int4,
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OUT root int4,
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OUT level int4,
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OUT fastroot int4,
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OUT fastlevel int4)
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AS 'MODULE_PATHNAME', 'bt_metap'
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LANGUAGE C STRICT;
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--
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-- bt_page_stats()
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--
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CREATE FUNCTION bt_page_stats(IN relname text, IN blkno int4,
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OUT blkno int4,
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OUT type "char",
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OUT live_items int4,
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OUT dead_items int4,
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OUT avg_item_size int4,
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OUT page_size int4,
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OUT free_size int4,
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OUT btpo_prev int4,
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OUT btpo_next int4,
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OUT btpo int4,
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OUT btpo_flags int4)
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AS 'MODULE_PATHNAME', 'bt_page_stats'
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LANGUAGE C STRICT;
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--
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-- bt_page_items()
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--
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CREATE FUNCTION bt_page_items(IN relname text, IN blkno int4,
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OUT itemoffset smallint,
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OUT ctid tid,
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OUT itemlen smallint,
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OUT nulls bool,
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OUT vars bool,
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OUT data text)
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RETURNS SETOF record
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AS 'MODULE_PATHNAME', 'bt_page_items'
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LANGUAGE C STRICT;
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--
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-- fsm_page_contents()
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--
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CREATE FUNCTION fsm_page_contents(IN page bytea)
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RETURNS text
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AS 'MODULE_PATHNAME', 'fsm_page_contents'
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LANGUAGE C STRICT;
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