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fd321a1dfd
Now that we track initial privileges on extension objects and changes to
those permissions, we can drop the superuser() checks from the various
functions which are part of the pgstattuple extension and rely on the
GRANT system to control access to those functions.
Since a pg_upgrade will preserve the version of the extension which
existed prior to the upgrade, we can't simply modify the existing
functions but instead need to create new functions which remove the
checks and update the SQL-level functions to use the new functions
(and to REVOKE EXECUTE rights on those functions from PUBLIC).
Thanks to Tom and Andres for adding support for extensions to follow
update paths (see: 40b449a), allowing this patch to be much smaller
since no new base version script needed to be included.
Approach suggested by Noah.
Reviewed by Michael Paquier.
112 lines
4.3 KiB
SQL
112 lines
4.3 KiB
SQL
/* contrib/pgstattuple/pgstattuple--1.4--1.5.sql */
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-- complain if script is sourced in psql, rather than via ALTER EXTENSION
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\echo Use "ALTER EXTENSION pgstattuple UPDATE TO '1.5'" to load this file. \quit
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CREATE OR REPLACE FUNCTION pgstattuple(IN relname text,
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OUT table_len BIGINT, -- physical table length in bytes
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OUT tuple_count BIGINT, -- number of live tuples
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OUT tuple_len BIGINT, -- total tuples length in bytes
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OUT tuple_percent FLOAT8, -- live tuples in %
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OUT dead_tuple_count BIGINT, -- number of dead tuples
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OUT dead_tuple_len BIGINT, -- total dead tuples length in bytes
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OUT dead_tuple_percent FLOAT8, -- dead tuples in %
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OUT free_space BIGINT, -- free space in bytes
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OUT free_percent FLOAT8) -- free space in %
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AS 'MODULE_PATHNAME', 'pgstattuple_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pgstattuple(text) FROM PUBLIC;
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CREATE OR REPLACE FUNCTION pgstatindex(IN relname text,
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OUT version INT,
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OUT tree_level INT,
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OUT index_size BIGINT,
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OUT root_block_no BIGINT,
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OUT internal_pages BIGINT,
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OUT leaf_pages BIGINT,
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OUT empty_pages BIGINT,
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OUT deleted_pages BIGINT,
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OUT avg_leaf_density FLOAT8,
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OUT leaf_fragmentation FLOAT8)
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AS 'MODULE_PATHNAME', 'pgstatindex_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pgstatindex(text) FROM PUBLIC;
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CREATE OR REPLACE FUNCTION pg_relpages(IN relname text)
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RETURNS BIGINT
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AS 'MODULE_PATHNAME', 'pg_relpages_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pg_relpages(text) FROM PUBLIC;
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/* New stuff in 1.1 begins here */
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CREATE OR REPLACE FUNCTION pgstatginindex(IN relname regclass,
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OUT version INT4,
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OUT pending_pages INT4,
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OUT pending_tuples BIGINT)
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AS 'MODULE_PATHNAME', 'pgstatginindex_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pgstatginindex(regclass) FROM PUBLIC;
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/* New stuff in 1.2 begins here */
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CREATE OR REPLACE FUNCTION pgstattuple(IN reloid regclass,
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OUT table_len BIGINT, -- physical table length in bytes
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OUT tuple_count BIGINT, -- number of live tuples
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OUT tuple_len BIGINT, -- total tuples length in bytes
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OUT tuple_percent FLOAT8, -- live tuples in %
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OUT dead_tuple_count BIGINT, -- number of dead tuples
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OUT dead_tuple_len BIGINT, -- total dead tuples length in bytes
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OUT dead_tuple_percent FLOAT8, -- dead tuples in %
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OUT free_space BIGINT, -- free space in bytes
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OUT free_percent FLOAT8) -- free space in %
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AS 'MODULE_PATHNAME', 'pgstattuplebyid_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pgstattuple(regclass) FROM PUBLIC;
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CREATE OR REPLACE FUNCTION pgstatindex(IN relname regclass,
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OUT version INT,
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OUT tree_level INT,
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OUT index_size BIGINT,
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OUT root_block_no BIGINT,
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OUT internal_pages BIGINT,
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OUT leaf_pages BIGINT,
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OUT empty_pages BIGINT,
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OUT deleted_pages BIGINT,
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OUT avg_leaf_density FLOAT8,
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OUT leaf_fragmentation FLOAT8)
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AS 'MODULE_PATHNAME', 'pgstatindexbyid_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pgstatindex(regclass) FROM PUBLIC;
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CREATE OR REPLACE FUNCTION pg_relpages(IN relname regclass)
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RETURNS BIGINT
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AS 'MODULE_PATHNAME', 'pg_relpagesbyid_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pg_relpages(regclass) FROM PUBLIC;
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/* New stuff in 1.3 begins here */
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CREATE OR REPLACE FUNCTION pgstattuple_approx(IN reloid regclass,
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OUT table_len BIGINT, -- physical table length in bytes
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OUT scanned_percent FLOAT8, -- what percentage of the table's pages was scanned
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OUT approx_tuple_count BIGINT, -- estimated number of live tuples
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OUT approx_tuple_len BIGINT, -- estimated total length in bytes of live tuples
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OUT approx_tuple_percent FLOAT8, -- live tuples in % (based on estimate)
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OUT dead_tuple_count BIGINT, -- exact number of dead tuples
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OUT dead_tuple_len BIGINT, -- exact total length in bytes of dead tuples
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OUT dead_tuple_percent FLOAT8, -- dead tuples in % (based on estimate)
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OUT approx_free_space BIGINT, -- estimated free space in bytes
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OUT approx_free_percent FLOAT8) -- free space in % (based on estimate)
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AS 'MODULE_PATHNAME', 'pgstattuple_approx_v1_5'
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LANGUAGE C STRICT PARALLEL SAFE;
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REVOKE EXECUTE ON FUNCTION pgstattuple_approx(regclass) FROM PUBLIC;
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