mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-21 08:29:39 +08:00
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.
50 lines
1.9 KiB
SQL
50 lines
1.9 KiB
SQL
/* contrib/pgstattuple/pgstattuple--1.0.sql */
|
|
|
|
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
|
|
\echo Use "CREATE EXTENSION pgstattuple" to load this file. \quit
|
|
|
|
CREATE FUNCTION pgstattuple(IN relname text,
|
|
OUT table_len BIGINT, -- physical table length in bytes
|
|
OUT tuple_count BIGINT, -- number of live tuples
|
|
OUT tuple_len BIGINT, -- total tuples length in bytes
|
|
OUT tuple_percent FLOAT8, -- live tuples in %
|
|
OUT dead_tuple_count BIGINT, -- number of dead tuples
|
|
OUT dead_tuple_len BIGINT, -- total dead tuples length in bytes
|
|
OUT dead_tuple_percent FLOAT8, -- dead tuples in %
|
|
OUT free_space BIGINT, -- free space in bytes
|
|
OUT free_percent FLOAT8) -- free space in %
|
|
AS 'MODULE_PATHNAME', 'pgstattuple'
|
|
LANGUAGE C STRICT;
|
|
|
|
CREATE FUNCTION pgstattuple(IN reloid oid,
|
|
OUT table_len BIGINT, -- physical table length in bytes
|
|
OUT tuple_count BIGINT, -- number of live tuples
|
|
OUT tuple_len BIGINT, -- total tuples length in bytes
|
|
OUT tuple_percent FLOAT8, -- live tuples in %
|
|
OUT dead_tuple_count BIGINT, -- number of dead tuples
|
|
OUT dead_tuple_len BIGINT, -- total dead tuples length in bytes
|
|
OUT dead_tuple_percent FLOAT8, -- dead tuples in %
|
|
OUT free_space BIGINT, -- free space in bytes
|
|
OUT free_percent FLOAT8) -- free space in %
|
|
AS 'MODULE_PATHNAME', 'pgstattuplebyid'
|
|
LANGUAGE C STRICT;
|
|
|
|
CREATE FUNCTION pgstatindex(IN relname text,
|
|
OUT version INT,
|
|
OUT tree_level INT,
|
|
OUT index_size BIGINT,
|
|
OUT root_block_no BIGINT,
|
|
OUT internal_pages BIGINT,
|
|
OUT leaf_pages BIGINT,
|
|
OUT empty_pages BIGINT,
|
|
OUT deleted_pages BIGINT,
|
|
OUT avg_leaf_density FLOAT8,
|
|
OUT leaf_fragmentation FLOAT8)
|
|
AS 'MODULE_PATHNAME', 'pgstatindex'
|
|
LANGUAGE C STRICT;
|
|
|
|
CREATE FUNCTION pg_relpages(IN relname text)
|
|
RETURNS BIGINT
|
|
AS 'MODULE_PATHNAME', 'pg_relpages'
|
|
LANGUAGE C STRICT;
|