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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2016-12-23 12:53:09 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2016-12-23 12:53:09 -0500 |
| commit | 3c9d398484fb6e188e665be8299d6e5e89924c94 (patch) | |
| tree | f5ee6501f3c21440d194f89b950525ff9dac2b36 /src/backend/parser/parse_clause.c | |
| parent | ff33d1456ea098e160cbbc74b332656c06abc2ab (diff) | |
| download | postgresql-3c9d398484fb6e188e665be8299d6e5e89924c94.tar.gz postgresql-3c9d398484fb6e188e665be8299d6e5e89924c94.zip | |
Doc: improve index entry for "median".
We had an index entry for "median" attached to the percentile_cont function
entry, which was pretty useless because a person following the link would
never realize that that function was the one they were being hinted to use.
Instead, make the index entry point at the example in syntax-aggregates,
and add a <seealso> link to "percentile".
Also, since that example explicitly claims to be calculating the median,
make it use percentile_cont not percentile_disc. This makes no difference
in terms of the larger goals of that section, but so far as I can find,
nearly everyone thinks that "median" means the continuous not discrete
calculation.
Per gripe from Steven Winfield. Back-patch to 9.4 where we introduced
percentile_cont.
Discussion: https://postgr.es/m/20161223102056.25614.1166@wrigleys.postgresql.org
Diffstat (limited to 'src/backend/parser/parse_clause.c')
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