DescribeQuery (children 1)
 TableExpression (children 1)
  Subquery (children 1)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectQuery (children 1)
      ExpressionList (children 12)
       Function array (children 1)
        ExpressionList
       Function array (children 1)
        ExpressionList
       Literal Array_[UInt64_1]
       Function array (children 1)
        ExpressionList (children 1)
         Literal UInt64_1
       Literal Array_[UInt64_1, UInt64_2]
       Function array (children 1)
        ExpressionList (children 2)
         Literal UInt64_1
         Literal UInt64_2
       Function tuple (children 1)
        ExpressionList (children 1)
         Literal UInt64_1
       Literal Tuple_(UInt64_1, UInt64_2)
       Function array (children 1)
        ExpressionList (children 2)
         Function array (children 1)
          ExpressionList
         Function array (children 1)
          ExpressionList
       Function array (children 1)
        ExpressionList (children 1)
         Function tuple (children 1)
          ExpressionList (children 2)
           Function array (children 1)
            ExpressionList
           Function array (children 1)
            ExpressionList
       Function tuple (children 1)
        ExpressionList (children 2)
         Function array (children 1)
          ExpressionList
         Function array (children 1)
          ExpressionList
       Function array (children 1)
        ExpressionList (children 2)
         Function tuple (children 1)
          ExpressionList (children 2)
           Function array (children 1)
            ExpressionList
           Function array (children 1)
            ExpressionList
         Function tuple (children 1)
          ExpressionList (children 2)
           Function array (children 1)
            ExpressionList
           Function array (children 1)
            ExpressionList