From: | Віталій Тимчишин <tivv00(at)gmail(dot)com> |
---|---|
To: | Yeb Havinga <yebhavinga(at)gmail(dot)com> |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Planner not using column limit specified for one column for another column equal to first |
Date: | 2010-04-16 13:58:22 |
Message-ID: | u2s331e40661004160658s842c95d4x22d212dc8cdbbb4e@mail.gmail.com |
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Lists: | pgsql-performance |
16 квітня 2010 р. 16:21 Yeb Havinga <yebhavinga(at)gmail(dot)com> написав:
> Віталій Тимчишин wrote:
>
>>
>> BTW: Changing slow query to inner joins do not make it fast
>>
> I'm interested to see the query andplan of the slow query with inner joins.
>
>
> Here you are. The query:
select * from company this_ inner join company_tag this_1_ on
this_.id=this_1_.company_id
inner join company_measures companymea2_ on
this_.id=companymea2_.company_id
inner join company_descr ces3_ on this_.id=ces3_.company_id
where this_1_.tag_id = 7 and this_.id>50000000
order by this_.id asc
limit 1000
;
Total runtime: 14088.942 ms
(plan is attached)
Best regards, Vitalii Tymchyshyn
Attachment | Content-Type | Size |
---|---|---|
innerplan.txt | text/plain | 1.5 KB |
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