Fix grouped count aggregation on SQL Server#778
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Requested
Issue #774 reports that SQL Server compilation removes
GROUP BYfrom grouped count queries.Implemented
AsCount()aggregate queries.COUNT(*)query while keeping the innerGROUP BY.GroupBy(...).AsCount().Not covered
No changes to distinct aggregate behavior or unrelated compiler output.
Validated
dotnet test sqlkata.sln --filter CountWithGroupBydotnet build sqlkata.slngit diff --checkAlso ran full
dotnet test sqlkata.sln; non-MySQL tests passed, while 11MySqlExecutionTestcases failed because no MySQL test service was available.