#24767: Add GREATEST and LEAST Query Expressions
-------------------------------------+-------------------------------------
Reporter: Ian-Foote | Owner: Ian-Foote
Type: New feature | Status: assigned
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by jarshwah):
If you open up a pull request now it'll make it easier for me (and others)
to provide some feedback inline with the code, even though it's not ready
yet.
Tip, check the coalesce() method of the ConcatPair. You'll need to figure
out the "default" value (by asking the user for it..) if an argument is
none though.
Also, sqlite requires at least 2 arguments. If there's only 1 argument
then it will use the aggregate MAX rather than the function mimicking
GREATEST. You could silently add a None expression to the list, require a
minimum of 2 expressions, or error out. But it should be handled some how.
--
Ticket URL: <https://code.djangoproject.com/ticket/24767#comment:7>
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