[PERFORM] it is always delete temp table will slow down the postmaster?

2005-08-10 Thread Chun Yit(Chronos)




hi, i got one situation here, i create one 
pl/pgsql function that using temp table to store temporary data.
wherever i execute my function, i need to 
delete all the data inside the temp table, but this will slow down the 

searching function if i conitnue to run the 
server because old tuples are not really clear if just using delete 
command.
so i use drop table command and recreate the 
table. my question is, would it slow down the postmaster speed if i continue to 

run this searching function more than 300 time 
per day?, cause the speed for execute searching function will graduatelly 
increase 
after i test it for few day? anyway to test it 
is causing by the drop temp table and create temp table command?

regards
ivan


[PERFORM] Postgresql7.4.5 running slow on plpgsql function

2005-06-27 Thread Chun Yit(Chronos)



hi, need some help with some experts 
here.
currently we have a function that use together 
with temp table, it calls search result function, everytime
this function is calling, it will go through 
some filter before come out as a result.
now we have some major problem , the first time 
the function execute, it take about 13 second
second time the function is execute, it take 
about 17 second, every time you execute the function
the time taken will grow about 4 second, 
?
mayi know what going on 
here?
since we use function with temp table, so every 
statement that related to temp table will using EXECUTE
command.

regards
ivan