Help with a complex Update - Mailing list pgsql-sql

From Orion
Subject Help with a complex Update
Date
Msg-id 9rv960$1des$1@news.tht.net
Whole thread Raw
Responses Re: Help with a complex Update  ("Ross J. Reedstrom" <reedstrm@rice.edu>)
Re: Help with a complex Update  ("Josh Berkus" <josh@agliodbs.com>)
List pgsql-sql
I have a table of users and a table of user_actions.
I'd like to have a first_action column in the user table. 

How would I go about updating that info.

I'd immagine it'd be something like this:

update user_info set first_action = (select min(action_timestamp) from 
action_info where user_id = ?? current user id ??);

Is this possible or do I have to make an external for loop?
       Orion



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