On Thursday 17 Jul 2003 8:21 am, Terence Kearns wrote:
select id from tablename where message like '%sql%';
If there any way to determine exactly how many times 'sql' is matched in that search in each particular row, and then sort by the most matches, or am I going to have to write a script to do the sorting for me?
You could probably write a function in postgres (say, "matchcount()") which returns the match count (possibly using perl and a regex).
Why reinvent the wheel when tsearch already does the job perfectly and is PostgreSQL compaitable.
Tsearch2 looks like it would be very useful but it's a lot of work to implement IMHO. At least it will probably (assumption) be a lot more efficient for massive amounts of data.
Remember the original question was regarding how to list results in order of how many hits were returned for each matched record.
-- Terence Kearns ~ ph: +61 2 6201 5516 IT Database/Applications Developer Enterprise Information Systems Client Services Division University of Canberra www.canberra.edu.au
---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
