Add multimapping One-To-Many

SqlKata.Execution/Query.Extensions.cs

@@ -47,6 +47,11 @@ public static async Task<IEnumerable<dynamic>> GetAsync(this Query query, IDbTra
             return await GetAsync<dynamic>(query, transaction, timeout);
         }
 
+        public static async Task<IEnumerable<TReturn>> GetAsync<TFirst, TSecond, TReturn>(this Query query, Func<TFirst, TSecond, TReturn> map, string splitOn, int? timeout = null)
+        {
+            return await CreateQueryFactory(query).GetAsync(query, map, splitOn, timeout);
+        }
+
         public static T FirstOrDefault<T>(this Query query, IDbTransaction transaction = null, int? timeout = null)
         {
             return CreateQueryFactory(query).FirstOrDefault<T>(query, transaction, timeout);

SqlKata.Execution/QueryFactory.cs

@@ -103,6 +103,23 @@ public async Task<IEnumerable<T>> GetAsync<T>(Query query, IDbTransaction transa
             return result;
         }
 
+        public async Task<IEnumerable<TReturn>> GetAsync<TFirst, TSecond, TReturn>(Query query, Func<TFirst, TSecond, TReturn> map, string splitOn, int? timeout = null)
+        {
+            var compiled = CompileAndLog(query);
+
+            var result = (await this.Connection.QueryAsync<TFirst, TSecond, TReturn>(
+                sql: compiled.Sql,
+                map: map,
+                splitOn: splitOn,
+                param: compiled.NamedBindings,
+                commandTimeout: timeout ?? this.QueryTimeout
+            )).ToList();
+
+            result = (await handleIncludesAsync(query, result)).ToList();
+
+            return result;
+        }
+
         public IEnumerable<IDictionary<string, object>> GetDictionary(Query query, IDbTransaction transaction = null, int? timeout = null)
         {
             var compiled = CompileAndLog(query);