postgresql/contrib/pg_walinspect/pg_walinspect--1.0--1.1.sql
Michael Paquier c31cf1c03d pg_walinspect: Add pg_get_wal_fpi_info()
This function is able to extract the full page images from a range of
records, specified as of input arguments start_lsn and end_lsn.  Like
the other functions of this module, an error is returned if using LSNs
that do not reflect real system values.  All the FPIs stored in a single
record are extracted.

The module's version is bumped to 1.1.

Author: Bharath Rupireddy
Reviewed-by: Bertrand Drouvot
Discussion: https://postgr.es/m/CALj2ACVCcvzd7WiWvD=6_7NBvVB_r6G0EGSxL4F8vosAi6Se4g@mail.gmail.com
2023-01-23 13:55:18 +09:00

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SQL

/* contrib/pg_walinspect/pg_walinspect--1.0--1.1.sql */
-- complain if script is sourced in psql, rather than via ALTER EXTENSION
\echo Use "ALTER EXTENSION pg_walinspect UPDATE TO '1.1'" to load this file. \quit
--
-- pg_get_wal_fpi_info()
--
CREATE FUNCTION pg_get_wal_fpi_info(IN start_lsn pg_lsn,
IN end_lsn pg_lsn,
OUT lsn pg_lsn,
OUT reltablespace oid,
OUT reldatabase oid,
OUT relfilenode oid,
OUT relblocknumber int8,
OUT forkname text,
OUT fpi bytea
)
RETURNS SETOF record
AS 'MODULE_PATHNAME', 'pg_get_wal_fpi_info'
LANGUAGE C STRICT PARALLEL SAFE;
REVOKE EXECUTE ON FUNCTION pg_get_wal_fpi_info(pg_lsn, pg_lsn) FROM PUBLIC;
GRANT EXECUTE ON FUNCTION pg_get_wal_fpi_info(pg_lsn, pg_lsn) TO pg_read_server_files;