IEnumerable<string> does not respect TypeMap
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area:typehandlers
needs-info
- Dominant language
- C#
- Stars
- 18.4k
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- Avg merge
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- Merged PRs (30d)
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Description
Setting the typemap to map string to AnsiString works with a single parameter. When passing in an IEnumerable it automatically uses String instead of looking up the DBType in the typemap.
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First steps
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Research direction
The payload names no files or tests. Start by tracing how Dapper binds a single string parameter versus an IEnumerable and where TypeMap or DBType is consulted; compare both paths and add a regression test showing that the enumerable case respects the configured AnsiString mapping.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- backend-api-design, databases
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100