WRONG RESULTS WITH FUNCTION BASED INDEX ON SUBSTR (Doc ID 953122.1)

Last updated on MARCH 27, 2014

Applies to:

Oracle Server - Enterprise Edition - Version 11.1.0.6 to 11.1.0.7 [Release 11.1]
Information in this document applies to any platform.

Symptoms

A query with  function based indexes(FBI) it is returning wrong results when
the plan it is accessing the FBI.

For example an issue may come due to such access:

access(SUBSTR(SUBSTR("CLOC",1,5),1,2)=SUBSTR("M"."CMUNIC",1,2) AND
SUBSTR("CLOC",1,5)="CMUNIC")

Cause

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