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Only check inexact match when no exact match is found. #39961

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yyjdelete
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@yyjdelete yyjdelete commented Jul 27, 2020

Fix #39620

Avoid the exact match result be overwrite by later inexact ones.
This may not happen due to limited callsites, just make the code more clear.

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I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

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dnfadmin commented Jul 27, 2020

CLA assistant check
All CLA requirements met.

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ghost commented Jul 27, 2020

Tagging subscribers to this area: @roji, @ajcvickers
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Wraith2 commented Jul 27, 2020

Tests?

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yyjdelete commented Jul 28, 2020

Infact, I don't know how and where to create an test for this internal api. And maybe it's not a problem due to it's internal and there is no dupe tables with different case actually used by public apis.

https://github.com/dotnet/runtime/search?q=filename%3AMetaData.xml&unscoped_q=filename%3AMetaData.xml

@yyjdelete yyjdelete closed this Jul 28, 2020
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I wouldn't close this PR just because you aren't adding tests. The bug is valid and benefits from being fixed, even though it doesn't surface with the existing *.SqlMetaData.xml embedded resources.

@yyjdelete yyjdelete reopened this Jul 29, 2020
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@cheenamalhotra this PR is pretty old now -- what's the next step?

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Since we don't have System.Data.SqlClient anymore, it can be closed.
The fix was ported over to Microsoft.Data.SqlClient - dotnet/SqlClient#668

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Strange logic in System.Data.ProviderBase.DbMetaDataFactory.FindMetaDataCollectionRow()
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