>>>>> "Pavel" == Pavel Stehule <pavel.steh...@gmail.com> writes:
>> I found so following error message is not too friendly (mainly because
>> this functionality will be new)
>> postgres=# select dense_rank(3,3,2) within group (order by num desc, odd)
>> from test4;
>> ERROR: Incorrect number of arguments for hypothetical set function
>> LINE 1: select dense_rank(3,3,2) within group (order by num desc, od...
>> Probably some hint should be there?
Anyone have ideas for better wording for the original error message,
or a DETAIL or HINT addition? The key point here is that the number of
_hypothetical_ arguments and the number of ordered columns must match,
but we don't currently exclude the possibility that a user-defined
hypothetical set function might have additional non-hypothetical args.
The first alternative that springs to mind is:
ERROR: Incorrect number of arguments for hypothetical set function
DETAIL: Number of hypothetical arguments (3) must equal number of ordered
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