#18833: Model returns incorrect values from Postgres DB View
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Reporter: paul.ortman@… | Owner: nobody
Type: Bug | Status: closed
Component: Database layer | Version: 1.4
(models, ORM) | Resolution: invalid
Severity: Normal | Triage Stage:
Keywords: | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by aaugustin):
* status: new => closed
* resolution: => invalid
Comment:
If `USE_TZ = True`, the database connection will be set to UTC, meaning
aggregation will be performed in UTC.
If `USE_TZ = False`, the database connection is set to `TIME_ZONE`.
When you're connecting directly to PostgreSQL, the connection uses the
system time zone.
As a consequence, aggregating on a DateTimeField by day can return
different values, since the day of a datetime depends on the time zone.
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Ticket URL: <https://code.djangoproject.com/ticket/18833#comment:3>
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