Amit Langote <> writes:
> On 2017/08/09 3:50, Robert Haas wrote:
>> In retrospect, I'm not thrilled by this error message, for two reasons:
>> 1. It gives no details, as other nearby messages do.  For example,
>> further down in the function, we have a message "partition \"%s\"
>> would overlap partition \"%s\", which tells you the names of the old
>> and new partitions.  But this message has no %-escapes at all.
>> ...
>> So, I suggest something like:
>> "lower bound %s for partition \"%s\" must precede upper bound %s"

> Or, we could specify extra information in the detail part in a way that is
> perhaps less confusing:

> ERROR: invalid range bound specification for partition \"%s\"
> DETAIL: specified lower bound %s succeeds upper bound %s

+1 for doing it more or less like that.  One of our basic message style
guidelines is that primary error texts shouldn't be very long, and it'd be
easy to break that rule if we embed data values in it.

A small suggestion is that it'd be better to write it like "Specified
upper bound \"%s\" precedes lower bound \"%s\"."  I think "succeeds" has
more alternate meanings than "precedes", so the wording you have seems
more confusing than it needs to be.  (Of course, the situation could be
the opposite in other languages, but translators have the ability to
reverse the ordering if they need to.)

Or you could just go with "follows" instead of "succeeds".

                        regards, tom lane

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