n= 310 

node), split, n, loss, yval, (yprob)
      * denotes terminal node

1) root 310 124 fail (0.6000000 0.4000000)  
  2) transaction_isolation=READ-COMMITTED,READ-UNCOMMITTED,SERIALIZABLE 186   0 fail (1.0000000 0.0000000) *
  3) transaction_isolation=NULL,REPEATABLE-READ 124   0 pass (0.0000000 1.0000000) *