On Wed, May 20, 2009 at 9:01 PM, Merlin Moncure <mmonc...@gmail.com> wrote: > On Wed, May 20, 2009 at 3:11 PM, Gerhard Wiesinger <li...@wiesinger.com> > wrote: >> Hello! >> >> Is HOT in 8.3 used in the following scenario: >> INSERT ... >> DELETE ... >> at the same ratio. >> >> So for example current data is added every minute and all old data older >> than 2 years are deleted. >> >> Would the heap be bloated or is this avoided by the HOT feature of 8.3 and >> nearly kept constant? > > HOT doesn't help here...it only helps with updates and then only if > you are updating fields that are not indexed. if your table has a > rolling set of data, for example a log file...you probably want to > look at table partitioning (either manual or built in). on that note, does HOT works in case I have TOASTed columns ? bytea, varchar(), etc ?
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