• Sean McGivern's avatar
    Speed up setting of relative position · eb15e4df
    Sean McGivern authored
    1. When every issue has a relative position set, we don't need to
       perform any updates, or calculate the maximum position in the parent.
    2. If we do need to calculate the maximum position in the parent, many
       parents (specifically, groups with lots of projects) leads to a slow
       query where only the index on issues.relative_position is used, not
       the index on issues.project_id. Adding the GROUP BY forces Postgres
       to use both indices.
    eb15e4df