AlterQuery  mv (children 2)
 ExpressionList (children 1)
  AlterCommand MODIFY_QUERY (children 1)
   SelectWithUnionQuery (children 1)
    ExpressionList (children 1)
     SelectQuery (children 3)
      ExpressionList (children 1)
       Literal \'dict\' (alias dict_name)
      ExpressionList (children 1)
       Function dictGetInt32 (children 1)
        ExpressionList (children 3)
         Identifier dict_name
         Literal \'value\'
         Identifier key
      TablesInSelectQuery (children 1)
       TablesInSelectQueryElement (children 1)
        TableExpression (children 1)
         TableIdentifier src
 Identifier mv
