.NET Dapper SqlMapper slow query execution
In .NET 8 with Npgsql and Dapper, our query is incredibly slow compared to executing it directly through another database manager.
Error when try to map entities in Dapper(Multi-map error: splitOn column)
Error:
System.ArgumentException: Multi-map error: splitOn column ‘Id’ was not found – please ensure your splitOn parameter is set and in the correct order (Parameter ‘splitOn’).