Changes between Initial Version and Version 4 of Ticket #28378


Ignore:
Timestamp:
Jul 9, 2017, 1:12:37 AM (7 years ago)
Author:
Sergey Fedoseev
Comment:

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  • Ticket #28378

    • Property Severity Normal → Release blocker
    • Property Triage Stage Unreviewed → Accepted
    • Property Cc Mariusz Felisiak added

  • Ticket #28378 – Description

    initial v4  
    11Similar and followup to ticket #28293. Tested on Django 1.11.3.
    22
    3 As QuerySet.union() uses the SQL UNION operator, I would expect "SET1 UNION <EMPTY SET>" to result in SET1. If the empty set is the results of [https://github.com/django/django/blob/5b450b84e14f42302f58ec1f15a67a368e64d85c/django/db/models/sql/where.py#L97 EmpytResultSet being raised], the `.uion()` result is an empty set, not SET1.
     3As QuerySet.union() uses the SQL UNION operator, I would expect "SET1 UNION <EMPTY SET>" to result in SET1. If the empty set is the results of [https://github.com/django/django/blob/5b450b84e14f42302f58ec1f15a67a368e64d85c/django/db/models/sql/where.py#L97 EmpytResultSet being raised], the `.union()` result is an empty set, not SET1.
    44
    55Example test case:
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