Stefan Champailler wrote:
Dear You all,
(please tell me if this has already been discussed, I was unable to find any
I'm developing a small application, tied to a PG 7.4 beta 5 (i didn't
upgrade). The DB i use is roughly 20 tales each of them containing at most 30
records (I'm still in development). I can provide a whole dump if necessary.
I access the DB throug IODBC (Suse Linux 8.1), through PHP. The machine
everything runs on is 512M of Ram, 2.5GHz speed. So I assume it should be
So here's my trouble : some DELETE statement take up to 1 minute to complete
(but not always, sometimes it's fast, sometimes it's that slow). Here's a
typical one : DELETE FROM response_bool WHERE response_id = '125'
The response_bool table has no foreing key and no index on response_id column.
No foreign key reference the response_bool table. There are 6 rows in the
table (given that size, I assumed that an index was not necessary).
So 1 minute to complete look like I did something REALLY bad.
It is my feeling that doing the same query with psql works without problem,
but I can't be sure.
I think that last sentence is the crux of the problem. If you can establish
for sure that the unreasonable delay is _only_ there when the command is
issued through IODBC, then it's not a Postgresql problem.
Out of curiosity, why are you using ODBC for PHP anyway? PHP has Postgresql
libraries that work very well. I use them quite often without problems.
---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster