<p>Can anyone recommend for/against the time-travel functions in postgresql's contrib/spi module?  Is there an example available anywhere?</p>

<p>Tnx</p>

The argument for time-travel would be being able to look at tables that are updated often at an earlier insertion/deletion point. Say a table of stock prices for a firms investment portfolio.
The argument against would be the extra storage space it eats up.
Here is an
Example
of use.