Re: patches for items from TODO list

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От Andrew Dunstan
Тема Re: patches for items from TODO list
Дата
Msg-id 428F346B.9080108@dunslane.net
обсуждение исходный текст
Ответ на Re: patches for items from TODO list  (Christopher Kings-Lynne <chriskl@familyhealth.com.au>)
Список pgsql-hackers
minor nit: the null attribute should take XMLSchema boolean type values: 
{true, false, 1, 0}

More importantly, how do you handle array or record type fields? If they 
are just opaque text I don't think that's what I at least would want 
from XML output routines.

cheers

andrew

Christopher Kings-Lynne wrote:

>> I'm going to second Neil here.   This feature becomes useful *only* 
>> when there is a certified or de-facto universal standard XML 
>> representation for database data.   Then I could see a case for it.  
>> But there isn't.   
>
>
> We've done it in phpPgAdmin (we made up our own standard), and a 
> couple of people use it.  I also do not think that it should be in the 
> backend until there is a standard.  Here is what phpPgAdmin produces 
> (note NULL handling):
>
> <?xml version="1.0" encoding="UTF-8" ?>
> <data>
>     <header>
>         <column name="feature_id" type="varchar" />
>         <column name="feature_name" type="varchar" />
>         <column name="is_supported" type="varchar" />
>         <column name="is_verified_by" type="varchar" />
>         <column name="comments" type="varchar" />
>     </header>
>     <records>
>         <row>
>             <column name="feature_id">PKG000</column>
>             <column name="feature_name">Core</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG001</column>
>             <column name="feature_name">Enhanced datetime 
> facilities</column>
>             <column name="is_supported">YES</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG002</column>
>             <column name="feature_name">Enhanced integrity 
> management</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG003</column>
>             <column name="feature_name">OLAP facilities</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG004</column>
>             <column name="feature_name">PSM</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments">PL/pgSQL is similar.</column>
>         </row>
>         <row>
>             <column name="feature_id">PKG005</column>
>             <column name="feature_name">CLI</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments">ODBC is similar.</column>
>         </row>
>         <row>
>             <column name="feature_id">PKG006</column>
>             <column name="feature_name">Basic object support</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG007</column>
>             <column name="feature_name">Enhanced object support</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG008</column>
>             <column name="feature_name">Active database</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments" null="null"></column>
>         </row>
>         <row>
>             <column name="feature_id">PKG010</column>
>             <column name="feature_name">OLAP</column>
>             <column name="is_supported">NO</column>
>             <column name="is_verified_by" null="null"></column>
>             <column name="comments">NO</column>
>         </row>
>     </records>
> </data>
>
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