Re: [HACKERS] time stops within transaction

[Peter Eisentraut]

Tom Lane writes:

> Peter Eisentraut <[EMAIL PROTECTED]> writes:
> > Tom Lane writes:
> >> That is what now() is defined to return: transaction start time.
> 
> > Then CURRENT_TIMESTAMP is in violation of SQL.
> 
> Au contraire, if it did not behave that way it would violate the spec.
> See SQL92 6.8 general rule 3:
> 
>          3) If an SQL-statement generally contains more than one reference
>             to one or more <datetime value function>s, then all such ref-
>             erences are effectively evaluated simultaneously. The time of
>                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>             evaluation of the <datetime value function> during the execution
>             of the SQL-statement is implementation-dependent.

statement != transaction

-- 
Peter Eisentraut      [EMAIL PROTECTED]       http://yi.org/peter-e/