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e472ce9624
The new pg_check_visible() and pg_check_frozen() functions can be used to verify that the visibility map bits for a relation's data pages match the actual state of the tuples on those pages. Amit Kapila and Robert Haas, reviewed (in earlier versions) by Andres Freund. Additional testing help by Thomas Munro.
18 lines
614 B
SQL
18 lines
614 B
SQL
/* contrib/pg_visibility/pg_visibility--1.0--1.1.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 pg_visibility UPDATE TO '1.1'" to load this file. \quit
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CREATE FUNCTION pg_check_frozen(regclass, t_ctid OUT tid)
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RETURNS SETOF tid
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AS 'MODULE_PATHNAME', 'pg_check_frozen'
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LANGUAGE C STRICT;
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CREATE FUNCTION pg_check_visible(regclass, t_ctid OUT tid)
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RETURNS SETOF tid
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AS 'MODULE_PATHNAME', 'pg_check_visible'
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LANGUAGE C STRICT;
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REVOKE ALL ON FUNCTION pg_check_frozen(regclass) FROM PUBLIC;
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REVOKE ALL ON FUNCTION pg_check_visible(regclass) FROM PUBLIC;
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