Re: clock_timestamp() and transaction_timestamp() function

Peter Eisentraut wrote:
> Bruce Momjian writes:
>
> > We have started 7.5 development so we can now work with you to complete
> > this item. Your question was what does statement_timestamp() show.
> > That has been discussed and it is a little tricky. The idea is that is
> > should be start of a single statement that arrives from the user or is
> > requestd by a client. However, this gets muddled because SPI can issue
> > queries and plpgsql functions can too.
>
> Are these supposed to be user-visible functions? What are they supposed
> to do?

Yes, user-visible. They give additional current timestamp information.
transaction_timestamp() is the same as current_timestamp,
clock_timestamp is the same as gettimeofday(), and statement_timestamp
is a new one that shows statement start time.

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