SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Identifier x1
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 2)
          Identifier x2
          Identifier y2
        Function plus (children 1)
         ExpressionList (children 2)
          Function plus (children 1)
           ExpressionList (children 2)
            Function arrayElement (children 1)
             ExpressionList (children 2)
              Identifier x2
              Literal UInt64_1
            Identifier y2
          Function arrayFirst (children 1)
           ExpressionList (children 2)
            Function lambda (children 1)
             ExpressionList (children 2)
              Function tuple (children 1)
               ExpressionList (children 1)
                Identifier x3
              Function notEquals (children 1)
               ExpressionList (children 2)
                Identifier x3
                Identifier y2
            Identifier x2
      Identifier arr
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal UInt64_1 (alias x1)
           Function array (alias arr) (children 1)
            ExpressionList (children 2)
             Function tuple (children 1)
              ExpressionList (children 2)
               Literal Array_[UInt64_1, UInt64_2]
               Literal UInt64_3
             Function tuple (children 1)
              ExpressionList (children 2)
               Literal Array_[UInt64_4, UInt64_5]
               Literal UInt64_6
