Reorganize with research folder

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rui hildt 2020-03-23 14:59:01 +01:00
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## Database architecture ## Database architecture
See: https://dbdiagram.io/d/5e769ab14495b02c3b88936f See: https://dbdiagram.io/d/5e769ab14495b02c3b88936f
## Flowchart
![Meeting Scheduler Flowchart](https://git.armada.digital/rui/meeting-scheduler-backend/src/branch/master/research/meetingscheduler.png "Meeting Scheduler Flowchart")
## How to deal with date and time in PostgreSQL? ## How to deal with date and time in PostgreSQL?
- use `datetime` datatype without timezone (datetime with timezone is using offset, which doesn't work well with DST) - use `datetime` datatype without timezone (datetime with timezone is using offset, which doesn't work well with DST)
- store datetime in UTC - store datetime in UTC