DescribeQuery (children 1)
 TableExpression (children 1)
  Subquery (children 1)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectQuery (children 2)
      ExpressionList (children 1)
       Function in (children 1)
        ExpressionList (children 2)
         Identifier id
         Subquery (children 1)
          SelectWithUnionQuery (children 1)
           ExpressionList (children 1)
            SelectQuery (children 2)
             ExpressionList (children 1)
              Identifier id
             TablesInSelectQuery (children 1)
              TablesInSelectQueryElement (children 1)
               TableExpression (children 1)
                TableIdentifier test_table_in
      TablesInSelectQuery (children 1)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier test_table