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- 优化 单表查询 ExpressionTree 性能；
This commit is contained in:
2881099
@ -3089,6 +3089,177 @@
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<param name="parms"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteConnectTestAsync(System.Int32,System.Threading.CancellationToken)">
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<summary>
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测试数据库是否连接正确，本方法执行如下命令：<para></para>
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MySql/SqlServer/PostgreSQL/达梦/人大金仓/神通: SELECT 1<para></para>
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Oracle: SELECT 1 FROM dual<para></para>
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</summary>
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<param name="commandTimeout">命令超时设置(秒)</param>
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<param name="cancellationToken"></param>
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<returns>true: 成功, false: 失败</returns>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteReaderAsync(System.Func{FreeSql.Internal.Model.FetchCallbackArgs{System.Data.Common.DbDataReader},System.Threading.Tasks.Task},System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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查询，若使用读写分离，查询【从库】条件cmdText.StartsWith("SELECT ")，否则查询【主库】
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</summary>
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<param name="readerHander"></param>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteReaderAsync(System.Func{FreeSql.Internal.Model.FetchCallbackArgs{System.Data.Common.DbDataReader},System.Threading.Tasks.Task},System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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查询，ExecuteReaderAsync(dr => {}, "select * from user where age > @age", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<param name="readerHander"></param>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteArrayAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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查询
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</summary>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteArrayAsync(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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查询，ExecuteArrayAsync("select * from user where age > @age", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteDataSetAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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查询
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</summary>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteDataSetAsync(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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查询，ExecuteDataSetAsync("select * from user where age > @age; select 2", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteDataTableAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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查询
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</summary>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteDataTableAsync(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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查询，ExecuteDataTableAsync("select * from user where age > @age", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteNonQueryAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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在【主库】执行
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</summary>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteNonQueryAsync(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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在【主库】执行，ExecuteNonQueryAsync("delete from user where age > @age", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteScalarAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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在【主库】执行
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</summary>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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</member>
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<member name="M:FreeSql.IAdo.ExecuteScalarAsync(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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在【主库】执行，ExecuteScalarAsync("select 1 from user where age > @age", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.QueryAsync``1(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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执行SQL返回对象集合，QueryAsync<User>("select * from user where age > @age", new SqlParameter { ParameterName = "age", Value = 25 })
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</summary>
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<typeparam name="T"></typeparam>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.QueryAsync``1(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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执行SQL返回对象集合，QueryAsync<User>("select * from user where age > @age", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<typeparam name="T"></typeparam>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.QueryAsync``2(System.Data.CommandType,System.String,System.Data.Common.DbParameter[],System.Threading.CancellationToken)">
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<summary>
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执行SQL返回对象集合，Query<User>("select * from user where age > @age; select * from address", new SqlParameter { ParameterName = "age", Value = 25 })
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</summary>
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<typeparam name="T1"></typeparam>
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<typeparam name="T2"></typeparam>
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<param name="cmdType"></param>
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<param name="cmdText"></param>
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<param name="cmdParms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.IAdo.QueryAsync``2(System.String,System.Object,System.Threading.CancellationToken)">
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<summary>
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执行SQL返回对象集合，Query<User, Address>("select * from user where age > @age; select * from address", new { age = 25 })<para></para>
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提示：parms 参数还可以传 Dictionary<string, object>
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</summary>
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<typeparam name="T1"></typeparam>
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<typeparam name="T2"></typeparam>
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<param name="cmdText"></param>
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<param name="parms"></param>
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<param name="cancellationToken"></param>
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<returns></returns>
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</member>
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<member name="E:FreeSql.IAop.ParseExpression">
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<summary>
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可自定义解析表达式
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@ -3917,6 +4088,12 @@
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<param name="timeout">超时</param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Internal.ObjectPool.IObjectPool`1.GetAsync">
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<summary>
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获取资源
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</summary>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Internal.ObjectPool.IObjectPool`1.Return(FreeSql.Internal.ObjectPool.Object{`0},System.Boolean)">
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<summary>
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使用完毕后，归还资源
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@ -3987,6 +4164,12 @@
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</summary>
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<param name="obj">资源对象</param>
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</member>
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<member name="M:FreeSql.Internal.ObjectPool.IPolicy`1.OnGetAsync(FreeSql.Internal.ObjectPool.Object{`0})">
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<summary>
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从对象池获取对象成功的时候触发，通过该方法统计或初始化对象
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</summary>
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<param name="obj">资源对象</param>
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</member>
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<member name="M:FreeSql.Internal.ObjectPool.IPolicy`1.OnReturn(FreeSql.Internal.ObjectPool.Object{`0})">
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<summary>
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归还对象给对象池的时候触发
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@ -513,8 +513,14 @@ namespace FreeSql.Internal.CommonProvider
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};
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});
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}
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static EventHandler<Aop.AuditDataReaderEventArgs> _OldAuditDataReaderHandler;
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public GetAllFieldExpressionTreeInfo GetAllFieldExpressionTreeLevel2()
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{
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if (_OldAuditDataReaderHandler != _orm.Aop.AuditDataReaderHandler)
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{
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_OldAuditDataReaderHandler = _orm.Aop.AuditDataReaderHandler; //清除单表 ExppressionTree
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_dicGetAllFieldExpressionTree.TryRemove($"{_orm.Ado.DataType}-{_tables[0].Table.DbName}-{_tables[0].Alias}-{_tables[0].Type}", out var oldet);
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}
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return _dicGetAllFieldExpressionTree.GetOrAdd(string.Join("+", _tables.Select(a => $"{_orm.Ado.DataType}-{a.Table.DbName}-{a.Alias}-{a.Type}")), s =>
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{
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var tb1 = _tables.First().Table;
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@ -621,18 +627,6 @@ namespace FreeSql.Internal.CommonProvider
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)
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});
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}
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if (otherindex == 0)
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{ //不读导航属性，优化单表读取性能
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blockExp.Clear();
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blockExp.AddRange(new Expression[] {
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Expression.Assign(dataIndexExp, Expression.Constant(0)),
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Expression.Assign(readExp, Expression.Call(Utils.MethodExecuteArrayRowReadClassOrTuple, new Expression[] { Expression.Constant(null, typeof(string)), Expression.Constant(type), Expression.Constant(null, typeof(int[])), rowExp, dataIndexExp, Expression.Constant(_commonUtils) })),
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Expression.IfThen(
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Expression.NotEqual(readExpValue, Expression.Constant(null)),
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Expression.Assign(retExp, Expression.Convert(readExpValue, type))
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)
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});
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}
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if (tb1.TypeLazy != null)
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blockExp.Add(
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Expression.IfThen(
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@ -640,6 +634,66 @@ namespace FreeSql.Internal.CommonProvider
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Expression.Call(retExp, tb1.TypeLazySetOrm, ormExp)
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)
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); //将 orm 传递给 lazy
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if (otherindex == 0)
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{
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//不读导航属性，优化单表读取性能
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blockExp.Clear();
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blockExp.AddRange(new Expression[]{
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Expression.Assign(retExp, type.InternalNewExpression()),
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Expression.Assign(dataIndexExp, Expression.Constant(0))
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});
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var colidx = 0;
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foreach (var col in tb.Table.Columns.Values)
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{
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var drvalType = col.Attribute.MapType.NullableTypeOrThis();
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var propGetSetMethod = tb.Table.Properties[col.CsName].GetSetMethod(true);
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if (col.CsType == col.Attribute.MapType &&
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_orm.Aop.AuditDataReaderHandler == null &&
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_dicMethodDataReaderGetValue.TryGetValue(col.Attribute.MapType.NullableTypeOrThis(), out var drGetValueMethod))
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{
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Expression drvalExp = Expression.Call(rowExp, drGetValueMethod, Expression.Constant(colidx));
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if (col.CsType.IsNullableType()) drvalExp = Expression.Convert(drvalExp, col.CsType);
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drvalExp = Expression.Condition(Expression.Call(rowExp, _MethodDataReaderIsDBNull, Expression.Constant(colidx)), Expression.Default(col.CsType), drvalExp);
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if (drvalType.IsArray || drvalType.IsEnum || Utils.dicExecuteArrayRowReadClassOrTuple.ContainsKey(drvalType))
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{
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var drvalExpCatch = Utils.GetDataReaderValueBlockExpression(
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col.CsType,
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Expression.Call(Utils.MethodDataReaderGetValue, new Expression[] { Expression.Constant(_commonUtils), rowExp, Expression.Constant(colidx) })
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);
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blockExp.Add(Expression.TryCatch(
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Expression.Call(retExp, propGetSetMethod, drvalExp),
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Expression.Catch(typeof(Exception),
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Expression.Call(retExp, propGetSetMethod, Expression.Convert(drvalExpCatch, col.CsType))
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//Expression.Throw(Expression.Constant(new Exception($"{_commonUtils.QuoteSqlName(col.Attribute.Name)} is NULL，除非设置特性 [Column(IsNullable = false)]")))
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)));
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}
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else
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{
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blockExp.Add(Expression.TryCatch(
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Expression.Call(retExp, propGetSetMethod, drvalExp),
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Expression.Catch(typeof(Exception),
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Expression.Call(retExp, propGetSetMethod, Expression.Default(col.CsType))
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//Expression.Throw(Expression.Constant(new Exception($"{_commonUtils.QuoteSqlName(col.Attribute.Name)} is NULL，除非设置特性 [Column(IsNullable = false)]")))
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)));
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}
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}
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else
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{
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if (drvalType.IsArray || drvalType.IsEnum || Utils.dicExecuteArrayRowReadClassOrTuple.ContainsKey(drvalType))
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{
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var drvalExp = Utils.GetDataReaderValueBlockExpression(
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col.CsType,
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Expression.Call(Utils.MethodDataReaderGetValue, new Expression[] { Expression.Constant(_commonUtils), rowExp, Expression.Constant(colidx) })
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);
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blockExp.Add(Expression.Call(retExp, propGetSetMethod, Expression.Convert(drvalExp, col.CsType)));
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}
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}
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colidx++;
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}
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if (tb1.TypeLazy != null)
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blockExp.Add(Expression.Call(retExp, tb1.TypeLazySetOrm, ormExp)); //将 orm 传递给 lazy
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}
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blockExp.AddRange(new Expression[] {
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Expression.Return(returnTarget, retExp),
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Expression.Label(returnTarget, Expression.Default(type))
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@ -651,6 +705,18 @@ namespace FreeSql.Internal.CommonProvider
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};
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});
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}
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static MethodInfo _MethodDataReaderIsDBNull = typeof(DbDataReader).GetMethod("IsDBNull", new Type[] { typeof(int) });
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static Dictionary<Type, MethodInfo> _dicMethodDataReaderGetValue = new Dictionary<Type, MethodInfo>
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{
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[typeof(bool)] = typeof(DbDataReader).GetMethod("GetBoolean", new Type[] { typeof(int) }),
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[typeof(int)] = typeof(DbDataReader).GetMethod("GetInt32", new Type[] { typeof(int) }),
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[typeof(long)] = typeof(DbDataReader).GetMethod("GetInt64", new Type[] { typeof(int) }),
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[typeof(double)] = typeof(DbDataReader).GetMethod("GetDouble", new Type[] { typeof(int) }),
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[typeof(float)] = typeof(DbDataReader).GetMethod("GetFloat", new Type[] { typeof(int) }),
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[typeof(decimal)] = typeof(DbDataReader).GetMethod("GetDecimal", new Type[] { typeof(int) }),
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[typeof(DateTime)] = typeof(DbDataReader).GetMethod("GetDateTime", new Type[] { typeof(int) }),
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[typeof(string)] = typeof(DbDataReader).GetMethod("GetString", new Type[] { typeof(int) }),
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};
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protected double InternalAvg(Expression exp)
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{
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