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ANALYZE ======= ANALYZE TABLE table_name [, table_name] ... ANALYZE TABLE read locks a table, and then analyzes and stores the key distribution for a table. FIXME: is read lock always true? FIXME: some engines don't perform an explicit gathering of statistics when you type ANALYZE. e.g. innobase (which only copies it's current estimate). Only recently did I add this to HailDB so that it does go and do the index dives on ANALYZE. |