Get the count once and store it in a session. ----- Original Message ----- From: "Neil Saunders" <n.j.saunders@xxxxxxxxx> To: <pgsql-php@xxxxxxxxxxxxxx> Sent: Wednesday, November 23, 2005 8:14 AM Subject: [PHP] Pagination of search results Hi, I'm writing a search engine, the results of which will displayed in blocks of 25, paginated. I will also display the number of records found (1-25 of 345). I'm trying to determine the most efficient way to implement this. Since the session is dropped after the script is terminated, I'm ruling our cursors. Also, cursors would prevent me from retrieving the total number of records potentially returned from a search, and so I couldn't display the correct number of page links. Also, this would require persistent connections, which I'd like to avoid for a number of reasons. The best I've come up with is "SELECT b.*, c.cnt FROM table AS b, (SELECT COUNT(1) AS cnt FROM table WHERE <LOTS OF CLAUSES>) AS c WHERE <SAME LOT OF CLAUSES> LIMIT 25 OFFSET 0" However this means that the query is essentially getting executed twice for each page. Is there any better way of implementing this? All advice gratefully received. Kind Regards, Neil Saunders. ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
