Does Indes stats get auto collected when stats auto collection is on?
In 10g and 11g, does Index stats get auto collected when stats auto collection is on (by default)? When do we need it? As I saw nothing in INDEX_STATS in both 10g and 11g.
Thanks.
Default is FOR ALL COLUMNS SIZE AUTO. statistics for indexes were also collected.
Index stats will be populated only if you validate structure. The view INDEX_STATS is only populated after you run an analyze index name validate structure. if you log out you no longer see the statistics
analyze index <index_name> validate structure;
select * from index_stats;
You'll see the information.
Edited by: Anantha on Jan 12, 2009 2:16 PM
Edited by: Anantha on Jan 12, 2009 2:25 PM
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