#16211: using negated F()-expression in update query
-------------------------------------+-------------------------------------
Reporter: wdoekes | Owner: nobody
Type: New feature | Status: reopened
Component: Database layer | Version: master
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Accepted
Keywords: | Needs documentation: 0
Has patch: 0 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
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Comment (by manfre):
For future reference, not all databases (mssql) support the requested
behavior.
The usage of `NOT` in the reverted commit
28abf5f0ebc9d380f25dd278d7ef4642c4504545, `UPDATE [expressions_company]
SET [is_large] = NOT (([expressions_company].[num_employees] < ?))`, is
not valid for MSSQL. "Incorrect syntax near the keyword 'NOT'".
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Ticket URL: <https://code.djangoproject.com/ticket/16211#comment:40>
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