Receiving "txnAutoWrap" error in MetaMatrix Designer

Issue

• We created a relational model which mainly inserts or updates a data source table. When we tested it inside designer, We get the below error message:
  • ERROR <com.metamatrix.core|0> Detected request "12213.24842" with multiple updates when using txnAutoWrap=OPTIMISTIC.  If you are using MetaMatrix Enterprise, you can set txnAutoWrap=OFF to avoid using a transaction or txnAutoWrap=PESSIMISTIC to automatically create a transaction when needed. If you are not using MetaMatrix Enterprise, no transaction manager is provided and transactions are not supported.  In that case, you can set txnAutoWrap=OFF to allow transaction methods to be called and ignored without actual transaction support. WARNING: Setting txnAutowrap=OFF and using transaction methods is risky because transactions will not be executed atomically and rollback will not occur!