Robert Haas <[email protected]> writes:
> On Fri, Apr 23, 2010 at 7:28 PM, Tom Lane <[email protected]> wrote:
>> I would expect that they'll get an error message that makes it clear
>> enough what to do ;-). In any case, changing the name is hardly going
>> to fix things so that 8.4 settings will still work, so why are you
>> giving that case as an argument for it?
> Principle of obvious breakage.
And? If we do it by adding the new variable while not renaming
archive_mode, then I'd expect an 8.4 configuration to yield an error
along the lines of
ERROR: invalid combination of configuration parameters
HINT: To turn on archive_mode, you must set wal_mode to "archive" or
"hot_standby".
(precise wording open to debate, but clearly we can do at least this
well) whereas if we rename archive_mode, it's unlikely we can do better
than
ERROR: unrecognized parameter "archive_mode"
Do you really think the second one is going to make any user happier
than the first?
regards, tom lane
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