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postgres/contrib/pageinspect/pageinspect--1.7--1.8.sql

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Add to pageinspect function to make t_infomask/t_infomask2 human-readable Flags of t_infomask and t_infomask2 for each tuple are already included in the information returned by heap_page_items as integers, and we lacked a way to make that information human-readable. Per discussion, the function includes an option which controls if combined flags should be decomposed or not. The default is false, to not decompose combined flags. The module is bumped to version 1.8. Author: Craig Ringer, Sawada Masahiko Reviewed-by: Peter Geoghegan, Robert Haas, Álvaro Herrera, Moon Insung, Amit Kapila, Michael Paquier, Tomas Vondra Discussion: https://postgr.es/m/CAMsr+YEY7jeaXOb+oX+RhDyOFuTMdmHjGsBxL=igCm03J0go9Q@mail.gmail.com
2019-09-12 09:06:00 +03:00
/* contrib/pageinspect/pageinspect--1.7--1.8.sql */
-- complain if script is sourced in psql, rather than via ALTER EXTENSION
\echo Use "ALTER EXTENSION pageinspect UPDATE TO '1.8'" to load this file. \quit
--
-- heap_tuple_infomask_flags()
--
CREATE FUNCTION heap_tuple_infomask_flags(
t_infomask integer,
t_infomask2 integer,
Redesign pageinspect function printing infomask bits After more discussion, the new function added by ddbd5d8 could have been designed in a better way. Based on an idea from Álvaro, instead of returning one column which includes both the raw and combined flags, use two columns, with one for the raw flags and one for the combined flags. This also takes care of some issues with HEAP_LOCKED_UPGRADED and HEAP_XMAX_IS_LOCKED_ONLY which are not really combined flags as they depend on conditions defined by other raw bits, as mentioned by Amit. While on it, fix an extra issue with combined flags. A combined flag was returned if at least one of its bits was set, but all its bits need to be set to include it in the result. Author: Michael Paquier Reviewed-by: Álvaro Herrera, Amit Kapila Discussion: https://postgr.es/m/20190913114950.GA3824@alvherre.pgsql
2019-09-19 05:01:52 +03:00
raw_flags OUT text[],
combined_flags OUT text[])
RETURNS record
Add to pageinspect function to make t_infomask/t_infomask2 human-readable Flags of t_infomask and t_infomask2 for each tuple are already included in the information returned by heap_page_items as integers, and we lacked a way to make that information human-readable. Per discussion, the function includes an option which controls if combined flags should be decomposed or not. The default is false, to not decompose combined flags. The module is bumped to version 1.8. Author: Craig Ringer, Sawada Masahiko Reviewed-by: Peter Geoghegan, Robert Haas, Álvaro Herrera, Moon Insung, Amit Kapila, Michael Paquier, Tomas Vondra Discussion: https://postgr.es/m/CAMsr+YEY7jeaXOb+oX+RhDyOFuTMdmHjGsBxL=igCm03J0go9Q@mail.gmail.com
2019-09-12 09:06:00 +03:00
AS 'MODULE_PATHNAME', 'heap_tuple_infomask_flags'
LANGUAGE C STRICT PARALLEL SAFE;