[email protected] writes:
> The index contains an entry for "median" on the aggregate functions
> page,
> but there is no mention of it there.
Hm --- that <indexterm> entry is attached to the percentile_cont()
function, which can be used to implement median, but I agree that
a person who already knew that would probably not be following the
index pointer.
It might be more useful to point to 4.2.7. Aggregate Expressions
which contains a concrete example of how to implement median
with percentile_disc().
Another idea is to just make the index entry say
"See percentile_cont() and percentile_disc()".
regards, tom lane
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