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Re: would number of fields in a table affect search-query time? - Mailing list pgsql-performance

From Tom Lane
Subject Re: would number of fields in a table affect search-query time?
Date
Msg-id 7324.1096932729@sss.pgh.pa.us
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In response to would number of fields in a table affect search-query time?  (Miles Keaton <mileskeaton@gmail.com>)
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Miles Keaton <mileskeaton@gmail.com> writes:
> What surprised me the most is that the subset, even in the original
> database, gave search results MUCH faster than the full table!

The subset table's going to be physically much smaller, so it could just
be that this reflects smaller I/O load.  Hard to tell without a lot more
detail about what case you were testing.

            regards, tom lane

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