Speeding up PostgreSQL query where data is between two dates

Posted by Roger on Stack Overflow See other posts from Stack Overflow or by Roger
Published on 2010-03-17T11:56:29Z Indexed on 2010/03/17 12:01 UTC
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Filed under:

sql

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postgresql

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Performance

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spatial-index

I have a large table (> 50m rows) which has some data with an ID and timestamp.

I need to query the table to select all rows with a certain ID where the timestamp is between two dates, but it currently takes over 2 minutes on a high end machine. I'd really like to speed it up.

I have found this tip which recommends using a spatial index, but the example it gives is for IP addresses. However, the speed increase (436s to 3s) is impressive.

How can I use this with timestamps?

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