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Remove some redundant joins on event_edges.room_id #3613
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We've long passed the point where it's possible to have the same event_id in different tables, so these join conditions are redundant: we can just join on event_id. event_edges is of non-trivial size, and the room_id column is wasteful, so let's stop reading from it. In future, we can stop writing to it, and then drop it.
erikjohnston
approved these changes
Jul 26, 2018
This was referenced May 26, 2022
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We've long passed the point where it's possible to have the same event_id in
different tables, so these join conditions are redundant: we can just join on
event_id.
event_edges is of non-trivial size, and the room_id column is wasteful, so
let's stop reading from it. In future, we can stop writing to it, and then drop
it.