Select from DBA_MVIEWs is very slow in 11g. (Doc ID 1322308.1)

Last updated on SEPTEMBER 15, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 11.1.0.6 to 11.2.0.2.0 - Release: 11.1 to 11.2
Information in this document applies to any platform.

Symptoms

Performance of the query is very slow when queried as :-
select * from dba_mviews where mview_name='<name>';

When the same query is executed but excluding the columns NUM_FRESH_PCT_REGIONS & NUM_STALE_PCT_REGIONS it runs fast.

Changes

From 11g onwards, two new columns has been added in the DBA_MVIEWS view i.e NUM_FRESH_PCT_REGIONS & NUM_STALE_PCT_REGIONS.

Cause

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