Delayed Block Cleanout is Not Working as Expected
(Doc ID 1925688.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Information in this document applies to any platform.
***Checked for relevance on 21-Jul-2017***
Delayed Block Cleanout isn't working as expected. Select right after a delete would clean out the left off transactional information, this should happen once and subsequent selects should not have to clean up the information.
But it has been observed that, sometimes (both in 11g and 12c) , on every select after a DML operation, cleanout happens. Also it appears that no cleanup is happening at the commit.
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