mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-18 07:43:24 +02:00
Since pgstattuple v1.5 hasn't been released yet, no need for a new extension version. The new function exposes statistics about hash indexes similar to what other pgstatindex functions return for other index types. Ashutosh Sharma, reviewed by Kuntal Ghosh. Substantial further revisions by me.
128 lines
4.7 KiB
SQL
128 lines
4.7 KiB
SQL
/* contrib/pgstattuple/pgstattuple--1.4--1.5.sql */
|
|
|
|
-- complain if script is sourced in psql, rather than via ALTER EXTENSION
|
|
\echo Use "ALTER EXTENSION pgstattuple UPDATE TO '1.5'" to load this file. \quit
|
|
|
|
CREATE OR REPLACE 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_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstattuple(text) FROM PUBLIC;
|
|
|
|
CREATE OR REPLACE 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_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstatindex(text) FROM PUBLIC;
|
|
|
|
CREATE OR REPLACE FUNCTION pg_relpages(IN relname text)
|
|
RETURNS BIGINT
|
|
AS 'MODULE_PATHNAME', 'pg_relpages_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pg_relpages(text) FROM PUBLIC;
|
|
|
|
/* New stuff in 1.1 begins here */
|
|
|
|
CREATE OR REPLACE FUNCTION pgstatginindex(IN relname regclass,
|
|
OUT version INT4,
|
|
OUT pending_pages INT4,
|
|
OUT pending_tuples BIGINT)
|
|
AS 'MODULE_PATHNAME', 'pgstatginindex_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstatginindex(regclass) FROM PUBLIC;
|
|
|
|
/* New stuff in 1.2 begins here */
|
|
|
|
CREATE OR REPLACE FUNCTION pgstattuple(IN reloid regclass,
|
|
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_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstattuple(regclass) FROM PUBLIC;
|
|
|
|
CREATE OR REPLACE FUNCTION pgstatindex(IN relname regclass,
|
|
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', 'pgstatindexbyid_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstatindex(regclass) FROM PUBLIC;
|
|
|
|
CREATE OR REPLACE FUNCTION pg_relpages(IN relname regclass)
|
|
RETURNS BIGINT
|
|
AS 'MODULE_PATHNAME', 'pg_relpagesbyid_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pg_relpages(regclass) FROM PUBLIC;
|
|
|
|
/* New stuff in 1.3 begins here */
|
|
|
|
CREATE OR REPLACE FUNCTION pgstattuple_approx(IN reloid regclass,
|
|
OUT table_len BIGINT, -- physical table length in bytes
|
|
OUT scanned_percent FLOAT8, -- what percentage of the table's pages was scanned
|
|
OUT approx_tuple_count BIGINT, -- estimated number of live tuples
|
|
OUT approx_tuple_len BIGINT, -- estimated total length in bytes of live tuples
|
|
OUT approx_tuple_percent FLOAT8, -- live tuples in % (based on estimate)
|
|
OUT dead_tuple_count BIGINT, -- exact number of dead tuples
|
|
OUT dead_tuple_len BIGINT, -- exact total length in bytes of dead tuples
|
|
OUT dead_tuple_percent FLOAT8, -- dead tuples in % (based on estimate)
|
|
OUT approx_free_space BIGINT, -- estimated free space in bytes
|
|
OUT approx_free_percent FLOAT8) -- free space in % (based on estimate)
|
|
AS 'MODULE_PATHNAME', 'pgstattuple_approx_v1_5'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstattuple_approx(regclass) FROM PUBLIC;
|
|
|
|
/* New stuff in 1.5 begins here */
|
|
|
|
CREATE OR REPLACE FUNCTION pgstathashindex(IN relname regclass,
|
|
OUT version INTEGER,
|
|
OUT bucket_pages BIGINT,
|
|
OUT overflow_pages BIGINT,
|
|
OUT bitmap_pages BIGINT,
|
|
OUT zero_pages BIGINT,
|
|
OUT live_items BIGINT,
|
|
OUT dead_items BIGINT,
|
|
OUT free_percent FLOAT8)
|
|
AS 'MODULE_PATHNAME', 'pgstathashindex'
|
|
LANGUAGE C STRICT PARALLEL SAFE;
|
|
|
|
REVOKE EXECUTE ON FUNCTION pgstathashindex(regclass) FROM PUBLIC;
|