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[release/5.0] Fix InvalidCastException when deserializing some dictionary types (#42835) - #45449
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layomia
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ahsonkhan, jozkee and steveharter
as code ownersDecember 2, 2020 01:20
steveharter
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Dec 7, 2020
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ericstj
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Ports #42835 to 5.0
Fixes#44726 in 5.0
Description
Support for non-string dictionary keys was added in 5.0 (PR, design doc). This support is scoped to primitives such as
DateTime,intetc. This change fixes a bug in that feature whereInvalidCastExceptionis thrown when deserializing the following dictionary types (exhaustive list) and the key type is not typeof(string):Customer Impact
Successful deserialization of the above cases. Customers can avoid increased concept count of knowing which dictionary types work and which ones fail.
Regression
Not a regression since it was a new feature in 5.0.
Testing
Unit tests have been added to verify the expected behavior.
Risk
Little to none. This is a very scoped change to address this issue only.