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Date: Tue, 28 Oct 2003 15:33:23 +0100
From: BenLaKnet <benlaknet@icqmail.com>
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Cc: pgsql-general@postgresql.org, pgsql-sql@postgresql.org
Subject: Re: [SQL] connectby
References: <20031028022356.45528.qmail@web80208.mail.yahoo.com>
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I use postgresql 7.2.3
How can I use connectby ??

Must I install files ? or packages ? or it is recommanded to upgrade 
dataserver ?




George Essig wrote:

>>hi
>>
>>I have menu table:
>>  id          | integer | not null default 
>>nextval('public.menu_id_seq'::text)
>>  parent_id   | integer |
>>  description | text    |
>>
>>I do select:
>>test=> SELECT * FROM connectby('menu','id','parent_id','2',0,'~') t(id 
>>integer, parent_id integer, level int, branch text);
>>  id | parent_id | level |   branch
>>----+-----------+-------+-------------
>>   2 |           |     0 | 2
>>   4 |         2 |     1 | 2~4
>>   7 |         4 |     2 | 2~4~7
>>  10 |         7 |     3 | 2~4~7~10
>>  16 |        10 |     4 | 2~4~7~10~16
>>   9 |         4 |     2 | 2~4~9
>>
>>How am I able to select description file from menu table, not only id, 
>>parent_id, level, branch fields?
>>
>>-- 
>>WBR, sector119
>>    
>>
>
>Try a join with the original table:
>
>SELECT t.*, description FROM connectby('menu','id','parent_id','2',0,'~') 
>AS t(id integer, parent_id integer, level int, branch text), menu 
>WHERE t.id = menu.id
>
>George Essig
>
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I use postgresql 7.2.3 <br>
How can I use connectby ?? <br>
<br>
Must I install files ? or packages ? or it is recommanded to upgrade
dataserver ?<br>
<br>
<br>
<br>
<br>
George Essig wrote:<br>
<blockquote type="cite"
 cite="mid20031028022356.45528.qmail@web80208.mail.yahoo.com">
  <blockquote type="cite">
    <pre wrap="">hi

I have menu table:
  id          | integer | not null default 
nextval('public.menu_id_seq'::text)
  parent_id   | integer |
  description | text    |

I do select:
test=&gt; SELECT * FROM connectby('menu','id','parent_id','2',0,'~') t(id 
integer, parent_id integer, level int, branch text);
  id | parent_id | level |   branch
----+-----------+-------+-------------
   2 |           |     0 | 2
   4 |         2 |     1 | 2~4
   7 |         4 |     2 | 2~4~7
  10 |         7 |     3 | 2~4~7~10
  16 |        10 |     4 | 2~4~7~10~16
   9 |         4 |     2 | 2~4~9

How am I able to select description file from menu table, not only id, 
parent_id, level, branch fields?

-- 
WBR, sector119
    </pre>
  </blockquote>
  <pre wrap=""><!---->
Try a join with the original table:

SELECT t.*, description FROM connectby('menu','id','parent_id','2',0,'~') 
AS t(id integer, parent_id integer, level int, branch text), menu 
WHERE t.id = menu.id

George Essig

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