SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function viewExplain (children 1)
       ExpressionList (children 2)
        Literal \'EXPLAIN AST\'
        Literal \'\'