message: FORCE CHECKPOINT now clears all transactions
diff: @@ -18,10 +18,11 @@ statement ok con1
  UPDATE test SET i=i+1;
  # con2 now refers back to the undo buffer of con1, but we can still checkpoint
  -statement ok
  +statement ok con2
  FORCE CHECKPOINT
  -statement ok con2
  +# force checkpoint has cleared our current transaction, so we can't rollback
  +statement error con2
  ROLLBACK
  statement ok con2
  