## v0.9.17 (ODBC)

- 增加 FreeSql.Provider.Odbc，实现 Oracle/SqlServer/MySql 的 Odbc 访问提供；
- 增加 FreeSqlBuilder.UseConnectionString 参数 providerType，可解决因包版本冲突时，可能无法反射获得 FreeSql.Provider 对应的类型，通常这个参数不需要设置；
- 优化 MaxLength 特性，当指定为 -1 时 DbType 会分别映射类型 text/nvarchar(max)/nvarchar2(4000)；

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/MySqlAdo/MySqlAdoTest.cs

@@ -0,0 +1,66 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Data.Odbc;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.MySql
+{
+    public class MySqlAdoTest
+    {
+        [Fact]
+        public void Pool()
+        {
+            var t1 = g.mysql.Ado.MasterPool.StatisticsFullily;
+        }
+
+        [Fact]
+        public void SlavePools()
+        {
+            var t2 = g.mysql.Ado.SlavePools.Count;
+        }
+
+        [Fact]
+        public void ExecuteReader()
+        {
+
+        }
+        [Fact]
+        public void ExecuteArray()
+        {
+
+        }
+        [Fact]
+        public void ExecuteNonQuery()
+        {
+
+        }
+        [Fact]
+        public void ExecuteScalar()
+        {
+
+        }
+
+        [Fact]
+        public void Query()
+        {
+            var t3 = g.mysql.Ado.Query<xxx>("select * from song");
+
+            var t4 = g.mysql.Ado.Query<(int, string, string)>("select * from song");
+
+            var t5 = g.mysql.Ado.Query<dynamic>("select * from song");
+        }
+
+        [Fact]
+        public void QueryMultipline()
+        {
+            Assert.Throws<OdbcException>(() => g.mysql.Ado.Query<xxx, (int, string, string), dynamic>("select * from song; select * from song; select * from song"));
+        }
+
+        class xxx
+        {
+            public int Id { get; set; }
+            public string Path { get; set; }
+            public string Title2 { get; set; }
+        }
+    }
+}