Author: Paul Holden
MDL-72826 reportbuilder: per-report option to show only unique rows.
This option allows report creators to avoid duplicate data being
displayed in their report. It is applied only when no columns in the
report currently have aggregation methods applied.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=be11216d30554a6545898600bddaa50c18005c46
http://github.com/moodle/moodle/commit/be11216d30554a6545898600bddaa50c18005c46
+ 4.0 en [uniquerows,core_reportbuilder]
+ 4.0 en [uniquerows_help,core_reportbuilder]