First of all you are going to have to show use what these queries are
exactly, what the machine is you are running on (CPU, memory, and
disk) , and how you have tuned it.
slow is a relative term.. we need information to determine what
"slow" means.
Dave
On 13-Sep-06, at 8:50 AM, yoav x wrote:
> So why are these queries so slow in PG?
>
>
> --- Dave Cramer <pg@fastcrypt.com> wrote:
>
>> All of the tuning parameters would affect all queries
>>
>> shared buffers, wal buffers, effective cache, to name a few
>>
>> --dc--
>> On 13-Sep-06, at 8:24 AM, yoav x wrote:
>>
>>> Hi
>>>
>>> I am trying to run sql-bench against PostgreSQL 8.1.4 on Linux.
>>> Some of the insert tests seems to be ver slow
>>>
>>> For example: select_join_in
>>>
>>> Are there any tuning parameters that can be changed to speed these
>>> queries? Or are these queries
>>> especially tuned to show MySQL's stgrenths?
>>>
>>>
>>>
>>>
>>> __________________________________________________
>>> Do You Yahoo!?
>>> Tired of spam? Yahoo! Mail has the best spam protection around
>>> http://mail.yahoo.com
>>>
>>> ---------------------------(end of
>>> broadcast)---------------------------
>>> TIP 9: In versions below 8.0, the planner will ignore your desire to
>>> choose an index scan if your joining column's datatypes do
>>> not
>>> match
>>>
>>
>>
>> ---------------------------(end of
>> broadcast)---------------------------
>> TIP 1: if posting/reading through Usenet, please send an appropriate
>> subscribe-nomail command to majordomo@postgresql.org so
>> that your
>> message can get through to the mailing list cleanly
>>
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 2: Don't 'kill -9' the postmaster
>
