Commit Graph

9 Commits

Author SHA1 Message Date
Bruce Momjian
74924d29fa Add functions to /contrib/pgstattuple that show index statistics and
index page contents.

Satoshi Nagayasu
2006-09-02 17:05:29 +00:00
Bruce Momjian
dab42382f4 Add index information to /contrib/pgstattuple:
This is an extension of pgstattuple to query information from indexes.
It supports btree, hash and gist. Gin is not supported. It scans only
index pages and does not read corresponding heap tuples. Therefore,
'dead_tuple' means the number of tuples with LP_DELETE flag.

Also, I added an experimental feature for btree indexes. It checks
fragmentation factor of indexes. If an leaf has the right link on the
next adjacent page in the file, it is assumed to be continuous (not
fragmented). It will help us to decide when to REINDEX.

ITAGAKI Takahiro
2006-07-06 02:18:07 +00:00
Peter Eisentraut
7f4f42fa10 Clean up CREATE FUNCTION syntax usage in contrib and elsewhere, in
particular get rid of single quotes around language names and old WITH ()
construct.
2006-02-27 16:09:50 +00:00
Bruce Momjian
a647e30ba3 New patch with corrected README attached.
Also quickly added mention that it may be a qualified schema name.

Rod Taylor
2003-06-12 08:02:57 +00:00
Tom Lane
e4186762ff Adjust nodeFunctionscan.c to reset transient memory context between calls
to the table function, thus preventing memory leakage accumulation across
calls.  This means that SRFs need to be careful to distinguish permanent
and local storage; adjust code and documentation accordingly.  Patch by
Joe Conway, very minor tweaks by Tom Lane.
2002-08-29 17:14:33 +00:00
Tatsuo Ishii
cf7ee638a7 Adapt for SRF(Set Returning Function). 2002-08-23 08:19:49 +00:00
Tom Lane
5f4745adf4 Further cleanups for relations in schemas: teach nextval and other
sequence functions how to cope with qualified names.  Same code is
also used for int4notin, currtid_byrelname, pgstattuple.  Also,
move TOAST tables into special pg_toast namespace.
2002-03-30 01:02:42 +00:00
Tom Lane
897083715b Fix pgstattuple to acquire a read lock on the target table. This
prevents embarassments such as having the table dropped or truncated
partway through the scan.  Also, fix free space calculation to include
pages that currently contain no tuples.
2001-12-19 20:28:41 +00:00
Tatsuo Ishii
9a23885f72 Add pgstattuple 2001-10-01 01:52:38 +00:00