Compression Advisor still Generates Redo Log on 18.104.22.168
(Doc ID 1324598.1)
Last updated on FEBRUARY 25, 2019
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Lots of redo log information is generated by Compression advisor creating internal table DBMS_TABCOMP_TEMP_UNCMP.
The DDL generating redo log is:
SELECT /*+ FULL(<owner>.<table>) */
FROM <owner>.<table> SAMPLE BLOCK (99) mytab
The source table has a lob and the segment associated to this lob has CACHE LOGGING setting:
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document