In 14.10, I understand System Threshold option is enabled when SysChangeThresholdOption = 0 (Enabled with DBQL usage). I understand that optimizer does not skip re-collections when use count logging is not enabled and SYSTEM THRESHOLD keywords are not specified in STATS statements. Does optimizer skip recollections when usecount logging is enabled and USING SYSTEM SAMPLE or SAMPLE N PERCENT options are specified in STATS statements ?
In 14.10, I understand System Threshold option is enabled when SysChangeThresholdOption = 0 (Enabled with DBQL usage). I understand that optimizer does not skip re-collections when use count logging is not enabled and SYSTEM THRESHOLD keywords are not specified in STATS statements. Does optimizer skip recollections when usecount logging is enabled and USING SYSTEM SAMPLE or SAMPLE N PERCENT options are specified in STATS statements ?