inconsistent implementation error in SQL query

Hi Experts,

Please check following query. It was running properly in SPS10. Recently, we have upgrated to SPS11. Now, I am not able to execute below mentioned query.

I am using single (same table) for fuzzy search.

select * from "SCHEMA_NAME"."TBL1" A where (
SELECT SCORE() AS SCORE FROM "SCHEMA_NAME"."TBL1" B
WHERE CONTAINS(B."EMP_NAME",'John', FUZZY(0.8))
and A."EMP_ID"=B."EMP_ID" ) >0.7

I am getting following error.

SAP DBTech JDBC: [2048]: column store error: search table error:  [23056] Internal error during join: inconsistent implementation