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3 Commits

Author SHA1 Message Date
Tom Lane
cc59049daf Improve handling of prune/no-prune decisions by storing a page's oldest 
unpruned XMAX in its header.  At the cost of 4 bytes per page, this keeps us
from performing heap_page_prune when there's no chance of pruning anything.
Seems to be necessary per Heikki's preliminary performance testing.
 2007-09-21 21:25:42 +00:00
Tom Lane
08fc73c4c3 Code review for btreefuncs additions: restrict to superusers to avoid 
exposing user data to others, and clean up usage of deprecated APIs.
 2007-08-26 23:22:49 +00:00
Bruce Momjian
64058429c5 Add database page inspection /contrib module. 
Simon and Heikki
 2007-05-17 19:11:25 +00:00