Uncompressed Index Size is Smaller than Compressed Index

(Doc ID 2181557.1)

Last updated on SEPTEMBER 16, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

After un-compressing an index, the size becomes smaller than when it was compressed.

The following testcase shows the issue:

 

Changes

 A compressed index is uncompressed.

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms