High CPU Usage on ts$ Query When Using 'Tablespace Group' as TEMP Tablespace

(Doc ID 394381.1)

Last updated on SEPTEMBER 21, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 10.1 to 10.2
This problem can occur on any platform.

Symptoms

After the introduction of temporary tablespace groups following query using a lot of CPU and executed many times

select min(bitmapped) from ts$ where dflmaxext =:1 and bitand(flags, 1024) = 1024.

Cause

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