MDL-61605 quiz report: add missing index/key
authorTim Hunt <T.J.Hunt@open.ac.uk>
Sun, 18 Mar 2018 20:40:43 +0000 (20:40 +0000)
committerTim Hunt <T.J.Hunt@open.ac.uk>
Sun, 18 Mar 2018 20:40:43 +0000 (20:40 +0000)
commitd9b80a5e695be7702bce19fd6b2538c21eb9961e
tree9772e97e4a6aee6e8bd30b86dbc71ca0e1524d54
parentb63a3b04b154990497bd58255b4ed579d37b432a
MDL-61605 quiz report: add missing index/key

Thanks to Patryk Szuta for the suggestion
mod/quiz/report/overview/db/install.xml
mod/quiz/report/overview/db/upgrade.php
mod/quiz/report/overview/version.php