On Fri, Apr 1, 2016 at 3:33 PM, Sándor Daku <daku.sandor@xxxxxxxxx> wrote:
On 1 April 2016 at 11:33, arnaud gaboury <arnaud.gaboury@xxxxxxxxx> wrote:What I am trying to do: I want the <home_dir> be returned for <username> u.I have one table email.mail.mailusers :I have one view email.mail_dir :
Table "email.mailusers"
Column | Type | Modifiers | Storage
| Stats target | Description
-------------+--------------------------+---------------------------------------------+--------
--+--------------+-------------
username | text | not null | extende
d | |
password | text | not null | extende
d | |
domain_name | text | not null default 'thetradinghall.com'::text | extende
d | |
created | timestamp with time zone | not null default now() | plain
| |
Indexes:
"mailusers_pkey" PRIMARY KEY, btree (username, domain_name)
Foreign-key constraints:
"mailusers_domain_fk" FOREIGN KEY (domain_name) REFERENCES email.domainlist(domain_name)
username | password | domain_name | created
----------------+--------------------------------------------------------------+---------------
arnaud.gaboury | XXXXYYYYYY | thetradinghall.com | 2016-02-04 09:48:58.834774+01
admin |XXXYYYYYY | thetradinghall.com | 2016-03-29 09:58:14.599743+02
postmaster | XXXYYYYYY | thetradinghall.com | 2016-03-31 16:36:18.96176+02
----------------------------------------------------------
View "email.mail_dir"
Column | Type | Modifiers | Storage | Description
----------+------+-----------+----------+-------------
home_dir | text | | extended |
View definition:
SELECT ((mailusers.domain_name || '/'::text) || mailusers.username) || '/'::text AS home_dir
FROM email.mailusers;
home_dir
------------------------------------
thetradinghall.com/arnaud.gaboury/
thetradinghall.com/admin/
thetradinghall.com/postmaster/
---------------------------------------------One of many difficulties with computers that they do what you say them to do, not what you think or you think you are saying. :)Lets see:SELECT d.home_dir
FROM email.mail_dir d, email.mailusers u <- make a join between mail_dir and mailusers = join every(!) record from the first table with every(!) record from the second table
WHERE u.username='arnaud.gaboury'; <- but I need only those from the joined records where the username is arnaud.gabouryAnd there, you have it.You can simply redefine the view.SELECT *,((mailusers.domain_name || '/'::text) || mailusers.username) || '/'::text AS home_dir
FROM email.mailusers;
Thank you so much. This way I get all needed info in one view.
Notice the * after the SELECT statement.So you have all the data plus the homedir.You can leave out the whole view thing and incorporate the home_dir _expression_ right into your select.Or you can write a function which makes this to you with the usename as argument.Regards,Sándor
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