AlterQuery  test_deletes (children 3)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function and (children 1)
    ExpressionList (children 2)
     Function greaterOrEquals (children 1)
      ExpressionList (children 2)
       Identifier a
       Literal UInt64_150
     Function less (children 1)
      ExpressionList (children 2)
       Identifier a
       Literal UInt64_250
   ExpressionList (children 1)
    Assignment b (children 1)
     Literal UInt64_1
 Identifier test_deletes
 Set
