postgres

Commit Graph

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.	10 years ago
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.	10 years ago
Robert Haas	ba0a198fb1	Add pg_visibility contrib module. This lets you examine the visibility map as well as page-level visibility information. I initially wrote it as a debugging aid, but was encouraged to polish it for commit. Patch by me, reviewed by Masahiko Sawada. Discussion: 56D77803.6080503@BlueTreble.com	10 years ago

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.

10 years ago

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.

10 years ago

Robert Haas

ba0a198fb1

Add pg_visibility contrib module.

This lets you examine the visibility map as well as page-level
visibility information.  I initially wrote it as a debugging aid,
but was encouraged to polish it for commit.

Patch by me, reviewed by Masahiko Sawada.

Discussion: 56D77803.6080503@BlueTreble.com

10 years ago

2 Commits (7684b6fbed3a0770a0d8fdcbb5cf8b61394de691)