Two things to keep in the back of your mind:
- Postgres allows functions to be used as defaults, such as CURRENT_TIMESTAMP, and CURRENT_DATE.
- There is more than one way to cast something, cast('3 minutes' AS interval) and possibly even the old 7.x way of type(var) so interval('3 minutes'), though that should be discouraged.
Evan Carroll www.EvanCarroll.com
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