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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 |
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.