Re: function returning a cursor and a scalar

Thanks much Alvaro. Didn't know I could do that.

For returning the matches, I am planning to run a separate count(*)
query with the original WHERE clause minus joins that are purely for
pulling addnl attributes from related entities. Only if this query
returns a positive count, I will run the query that actually gets the
data. I google'd some and couldn't find a way to avoid two queries.

Best Regards,
Surajit Bhattacharjee
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-----Original Message-----
From: Alvaro Herrera [mailto:alvherre(at)commandprompt(dot)com]
Sent: Monday, July 13, 2009 2:22 PM
To: Surajit Bhattacharjee
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] function returning a cursor and a scalar

Surajit Bhattacharjee wrote:
> I am new to Postgresql and am trying to write a function which will do
a
> search and return the first page of results along with the total
number
> of matches. How can I make my function return a cursor AND a scalar -
> can I do the scalar as an OUT param and then make the function
> explicitly RETURN a refcursor?

Why wouldn't you just use two OUT params?

BTW how do you plan on returning the number of matches?

--
Alvaro Herrera
http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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