#28333: Filter and subquery for window expressions
-------------------------------------+-------------------------------------
Reporter: Mads | Owner: nobody
Jensen |
Type: New | Status: new
feature |
Component: Database | Version: master
layer (models, ORM) | Keywords: window orm filter
Severity: Normal | subquery
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
#26608 will introduce window function expressions, but will disallow
filtering on the result of them, e.g.:
{{{
Window.objects.annotate(row=Window(expression=RowNumber())).filter(row__lt=1)
}}}
is not allowed. Instead, the window function expression should be wrapped
in an inner query, and the filtering should be done in an outer query.
--
Ticket URL: <https://code.djangoproject.com/ticket/28333>
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