#29317: filter keyword undocumented in PostgreSQL aggregate functions
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Reporter: Matthew | Owner: nobody
Pava |
Type: | Status: new
Cleanup/optimization |
Component: | Version:
Documentation |
Severity: Normal | Keywords: aggregate
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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The signature for all of the aggregate functions for PostgreSQL includes a
`filter` keyword argument, but I can't figure out what it is used for
based on the documentation alone:
[https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/aggregates/].
For what it's worth, I'm trying to filter out all of the empty values in
an `ArrayAgg` expression, which seems to be a fairly common thing that one
would want to do. Perhaps we could add an example to the documentation
showing how that can be accomplished. I'm not sure right now if the
`filter` keyword argument is the way to go.
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Ticket URL: <https://code.djangoproject.com/ticket/29317>
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