Re: Premature view materialization in 8.2?
| От | Tom Lane | 
|---|---|
| Тема | Re: Premature view materialization in 8.2? | 
| Дата | |
| Msg-id | 15092.1175881227@sss.pgh.pa.us обсуждение исходный текст | 
| Ответ на | Re: Premature view materialization in 8.2? ("Jonathan Ellis" <jonathan@utahpython.org>) | 
| Ответы | Re: Premature view materialization in 8.2? | 
| Список | pgsql-performance | 
"Jonathan Ellis" <jonathan@utahpython.org> writes:
> On 4/6/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Yeah, it sure is the same plan, and 8.2 seems to be a tad faster right
>> up to the hash join on user_id.  Is user_id a textual datatype?
> user_id is an int; they are both C locale.
Really!?  So much for that theory.
Is work_mem set similarly on both installations?
The only other thing I can think is that you've exposed some unfortunate
corner case in the hash join logic.  Would you be willing to send me
(off-list) the lists of user_ids being joined?  That would be the
clan_members.user_id column and the user_id column from the join of
parties and clan_participants.
            regards, tom lane
		
	В списке pgsql-performance по дате отправления: