Improve management of "sticky" entries in contrib/pg_stat_statements.
This patch addresses a deficiency in the previous pg_stat_statements patch. We want to give sticky entries an initial "usage" factor high enough that they probably will stick around until their query is completed. However, if the query never completes (eg it gets an error during execution), the entry shouldn't persist indefinitely. Manage this by starting out with a usage setting equal to the (approximate) median usage value within the whole hashtable, but decaying the value much more aggressively than we do for normal entries. Peter Geoghegan Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/d5375491f8e391224b48e4bb449995a4642183ea Modified Files -------------- contrib/pg_stat_statements/pg_stat_statements.c | 57 +++++++++++++++++------ 1 files changed, 42 insertions(+), 15 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
