Supported Providers

Required package: Dapper.FluentMap

Problem solved

Distinguish certified providers from general ADO.NET compatibility.

When to use it

Use this capability when the column shape and .NET model should remain separated by explicit, reviewable configuration.

Example

public sealed class CustomerMap : EntityMap<Customer>
{
    public CustomerMap()
    {
        Map(x => x.Id).ToColumn("customer_id");
        Map(x => x.Name).ToColumn("customer_name");
    }
}

How it works

FluentMap registers typed metadata and applies it through the matching materialization path. SQL, connections, parameters, and lifecycle remain responsibilities of the application and Dapper.

Support levels

Dapper-compatible: expected to work through Dapper/ADO.NET, without dedicated real-database FluentMap certification.
FluentMap Core certified: required real-database tests cover FluentMap mapping and materialization, independently of Dommel.
FluentMap + Dommel certified: required real-database tests also cover the supported Dommel persistence path.
Legacy/upstream-limited: retained for compatibility without a modern certification lane.

Provider	Core	Dommel	Tested server/runtime	Tested client
SQLite	Certified	Certified	In-memory	`Microsoft.Data.Sqlite` 10.0.12
SQL Server	Certified	Certified	2022 CU23	`Microsoft.Data.SqlClient` 7.1.0
PostgreSQL	Certified	Certified	18.6	`Npgsql` 10.0.3
MySQL	Certified	Certified	8.4.11	`MySqlConnector` 2.6.2
MariaDB	Certified	Certified	11.8.9	`MySqlConnector` 2.6.2
Oracle	Certified	Not certified	23.26.0 Free	`Oracle.ManagedDataAccess.Core` 23.26.301
Firebird	Certified	Not certified	5.0.4	`FirebirdSql.Data.FirebirdClient` 10.3.4
SQL Server CE	Legacy/upstream-limited	Legacy/upstream-limited	Not certified	Not certified

These pinned versions and evidence are also maintained in the machine-readable compatibility contract.

Constraints