#10929: Support a default value for Sum (and possibly other aggregation
functions)
-------------------------------------+-------------------------------------
Reporter: nolan | Owner:
Type: New feature | Status: new
Component: Database layer | Version: master
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Accepted
Keywords: aggregate annotate | Needs documentation: 1
default | Patch needs improvement: 0
Has patch: 1 | UI/UX: 0
Needs tests: 0 |
Easy pickings: 0 |
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Comment (by mrmachine):
I'm not totally convinced (yet) that we should give up on this when
`Coalesce()` becomes available. If we just instruct people to use
`Coalesce(Sum(...), default)` all the time, we're basically just
recreating the literal semantics of SQL itself rather than providing an
easy to use abstraction of it. Sure, it would be useful and powerful to
have `Coalesce()` as well, but we might not need to force people to use it
all the time for the common case. At the very least, a decision on closing
this ticket should probably wait until `Coalesce()` is actually
implemented.
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Ticket URL: <https://code.djangoproject.com/ticket/10929#comment:11>
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