[5.0.x] Fix default constraint logic in SQL Server migrations (#24274) #24305
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bricelam
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Mar 1, 2021
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Approved for April - 5.0.5. |
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Port of 6.0 fix #24274 to 5.0 release.
Fixes #24272
Description
An exception is thrown when generating migration SQL when a property is modified which has both a comment and a default value.
Customer Impact
This prevents users from generating SQL scripts or applying migrations in the scenario described above. Working around this isn't trivial.
How found
Reported by a customer.
Test coverage
Test coverage for this case has been added in this PR.
Regression?
Yes, from EF Core 3.1.
Risk
Low. SQL Server migrations are generally well-covered by tests, the fix is very small, and affects only the SQL Server migration SQL generator, which is a design-time component. The fix is also quirked.