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More Space utilization/performance degradation with compression and chained rows (Doc ID 2368993.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.1 to 12.2 BETA1 [Release 12.1 to 12.2]
Information in this document applies to any platform.

Symptoms

Case1:

1,create table without compression enabled
2,Run Merge or any other dml statement
3,check presence of chained rows

Case2:

1,create Table with compression enabled
2,perform dml(merge etc)
3,Check for chained rows

Performance degradation and space utilization in more in case2 than in case1



Cause

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