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71d05a2c7b
This requires some core changes as well so that we can properly WAL-log the truncation. Specifically, it changes the format of the XLOG_SMGR_TRUNCATE WAL record, so bump XLOG_PAGE_MAGIC. Patch by me, reviewed but not fully endorsed by Andres Freund.
25 lines
883 B
SQL
25 lines
883 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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CREATE FUNCTION pg_truncate_visibility_map(regclass)
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RETURNS void
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AS 'MODULE_PATHNAME', 'pg_truncate_visibility_map'
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LANGUAGE C STRICT
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PARALLEL UNSAFE; -- let's not make this any more dangerous
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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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REVOKE ALL ON FUNCTION pg_truncate_visibility_map(regclass) FROM PUBLIC;
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