CreateQuery mv (children 3)
 Identifier mv
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier x
     Function CAST (children 1)
      ExpressionList (children 2)
       Function array (children 1)
        ExpressionList (children 1)
         Function tuple (children 1)
          ExpressionList (children 2)
           Identifier y
           Identifier z
       Literal \'Nested(y int, z int)\'
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier t
 ViewTargets (children 1)
  Storage definition (children 1)
   Function tuple (children 1)
    ExpressionList
