#28103: Add "quarter" lookup to DateField/DateTimeField
-------------------------------------+-------------------------------------
Reporter: Matthew Pava | Owner: Mads
| Jensen
Type: New feature | Status: assigned
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: ORM Extract Trunc | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Mads Jensen):
Oracle and PostgreSQL have built-in functionality for truncating a date to
the first month of a quarter. However, in Oracle, it rounds up
(https://docs.oracle.com/database/121/SQLRF/functions271.htm#SQLRF52058)
and in PostgreSQL, it's always rounded down
(https://www.postgresql.org/docs/current/static/functions-datetime.html
#FUNCTIONS-DATETIME-TRUNC). Neither SQLite or MySQL has a convenient
built-in functionality and it's a matter of interpretation.
The Extract functionality is implemented, and has the same behavior on all
backends.
--
Ticket URL: <https://code.djangoproject.com/ticket/28103#comment:6>
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