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Author SHA1 Message Date
Robert Haas
71d05a2c7b pg_visibility: Add pg_truncate_visibility_map function. 
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.
 2016-06-17 17:37:30 -04:00
Robert Haas
e472ce9624 Add integrity-checking functions to pg_visibility. 
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.
 2016-06-15 14:33:58 -04:00
Renamed from contrib/pg_visibility/pg_visibility--1.0.sql (Browse further)