SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function arrayShiftLeft (children 1)
     ExpressionList (children 3)
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'[1, 2, 3, 4, 5, 6]\'
        Literal \'Array(UInt16)\'
      Literal UInt64_1
      Literal UInt64_1000