DescribeQuery (children 1)
 TableExpression (children 1)
  Subquery (children 1)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectQuery (children 2)
      ExpressionList (children 1)
       Asterisk
      TablesInSelectQuery (children 2)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier test
       TablesInSelectQueryElement (children 1)
        ArrayJoin (children 1)
         ExpressionList (children 1)
          Identifier products
