Re: Date indexing
От | Ian Cass |
---|---|
Тема | Re: Date indexing |
Дата | |
Msg-id | 003001c1ead0$41169260$6602a8c0@salamander обсуждение исходный текст |
Ответ на | Date indexing ("Ian Cass" <ian.cass@mblox.com>) |
Список | pgsql-sql |
> This won't be able to make much use of the compound index, because you > are not searching for exact match on the first column, and the other > columns are not in your criteria at all ... Thus your index is only as > good as being just on the timestamp alone. This makes sense. I'll change the order of my indexing. > 10 minutes still sounds pretty excessive though, even for a seq. scan > on a 5000 rows table. Have you vacuum'ed it lately? > Try running 'vacuum full' on that table, it might help a lot, if you > were ding lots of updates to it. No, the actual table contains more like 10mill lines, however, the dataset I'd be referencing if the index were working as I intended would be a mere 5k rows. Thanks for your help. I'll try this later today. -- Ian Cass
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