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- 增加 pgsql 扩展方法 ISelect<T>.DistinctOn；#1680
This commit is contained in:
2881099
parent
efedfc4cab
commit
139c19e224
@ -1104,82 +1104,6 @@
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</summary>
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</summary>
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<returns></returns>
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<returns></returns>
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</member>
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</member>
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<member name="T:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder">
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<summary>
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动态创建实体类型
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</summary>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.#ctor(IFreeSql,System.String,System.Attribute[])">
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<summary>
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配置Class
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</summary>
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<param name="className">类名</param>
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<param name="attributes">类标记的特性[Table(Name = "xxx")] [Index(xxxx)]</param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.Property(System.String,System.Type,System.Attribute[])">
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<summary>
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配置属性
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</summary>
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<param name="propertyName">属性名称</param>
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<param name="propertyType">属性类型</param>
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<param name="attributes">属性标记的特性-支持多个</param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.Property(System.String,System.Type,System.Boolean,System.Attribute[])">
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<summary>
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配置属性
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</summary>
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<param name="propertyName">属性名称</param>
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<param name="propertyType">属性类型</param>
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<param name="isOverride">该属性是否重写父类属性</param>
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<param name="attributes">属性标记的特性-支持多个</param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.Property(System.String,System.Type,System.Boolean,System.Object,System.Attribute[])">
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<summary>
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配置属性
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</summary>
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<param name="propertyName">属性名称</param>
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<param name="propertyType">属性类型</param>
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<param name="isOverride">该属性是否重写父类属性</param>
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<param name="defaultValue">属性默认值</param>
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<param name="attributes">属性标记的特性-支持多个</param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.Extend(System.Type)">
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<summary>
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配置父类
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</summary>
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<param name="superClass">父类类型</param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.OverrideProperty(System.Reflection.Emit.TypeBuilder@,System.Reflection.Emit.MethodBuilder,FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.PropertyMethodEnum,System.String)">
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<summary>
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Override属性
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</summary>
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<param name="typeBuilder"></param>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.Build">
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<summary>
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Emit动态创建出Class - Type
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</summary>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.FirstCharToLower(System.String)">
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<summary>
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首字母小写
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</summary>
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<param name="input"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.DynamicEntity.DynamicCompileBuilder.FirstCharToUpper(System.String)">
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<summary>
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首字母大写
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</summary>
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<param name="input"></param>
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<returns></returns>
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</member>
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<member name="M:FreeSql.Extensions.EntityUtil.EntityUtilExtensions.GetEntityKeyString(IFreeSql,System.Type,System.Object,System.Boolean,System.String)">
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<member name="M:FreeSql.Extensions.EntityUtil.EntityUtilExtensions.GetEntityKeyString(IFreeSql,System.Type,System.Object,System.Boolean,System.String)">
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<summary>
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<summary>
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获取实体的主键值，以 "*|_,[,_|*" 分割，当任意一个主键属性无值时，返回 null
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获取实体的主键值，以 "*|_,[,_|*" 分割，当任意一个主键属性无值时，返回 null
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@ -3676,177 +3600,6 @@
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<param name="parms"></param>
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<param name="parms"></param>
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<returns></returns>
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<returns></returns>
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</member>
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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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<member name="E:FreeSql.IAop.ParseExpression">
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<summary>
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<summary>
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可自定义解析表达式
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可自定义解析表达式
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@ -4846,12 +4599,6 @@
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<param name="timeout">超时</param>
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<param name="timeout">超时</param>
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<returns></returns>
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<returns></returns>
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</member>
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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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<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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<summary>
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使用完毕后，归还资源
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使用完毕后，归还资源
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@ -4927,12 +4674,6 @@
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</summary>
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</summary>
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<param name="obj">资源对象</param>
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<param name="obj">资源对象</param>
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</member>
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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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<member name="M:FreeSql.Internal.ObjectPool.IPolicy`1.OnReturn(FreeSql.Internal.ObjectPool.Object{`0})">
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<summary>
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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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归还对象给对象池的时候触发
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@ -5863,28 +5604,6 @@
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请使用 fsql.InsertDict(dict) 方法插入字典数据
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请使用 fsql.InsertDict(dict) 方法插入字典数据
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</summary>
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</summary>
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</member>
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</member>
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<member name="M:FreeSqlGlobalDynamicEntityExtensions.DynamicEntity(FreeSql.ICodeFirst,System.String,System.Attribute[])">
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<summary>
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动态构建Class Type
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</summary>
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<returns></returns>
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</member>
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<member name="M:FreeSqlGlobalDynamicEntityExtensions.CreateInstance(FreeSql.Internal.Model.TableInfo,System.Collections.Generic.Dictionary{System.String,System.Object})">
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<summary>
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根据字典，创建 table 对应的实体对象
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</summary>
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|
||||||
<param name="table"></param>
|
|
||||||
<param name="dict"></param>
|
|
||||||
<returns></returns>
|
|
||||||
</member>
|
|
||||||
<member name="M:FreeSqlGlobalDynamicEntityExtensions.CreateDictionary(FreeSql.Internal.Model.TableInfo,System.Object)">
|
|
||||||
<summary>
|
|
||||||
根据实体对象，创建 table 对应的字典
|
|
||||||
</summary>
|
|
||||||
<param name="table"></param>
|
|
||||||
<param name="instance"></param>
|
|
||||||
<returns></returns>
|
|
||||||
</member>
|
|
||||||
<member name="M:FreeSqlGlobalExpressionCallExtensions.Between(System.DateTime,System.DateTime,System.DateTime)">
|
<member name="M:FreeSqlGlobalExpressionCallExtensions.Between(System.DateTime,System.DateTime,System.DateTime)">
|
||||||
<summary>
|
<summary>
|
||||||
C#： that >= between && that <= and<para></para>
|
C#： that >= between && that <= and<para></para>
|
||||||
|
|||||||
@ -101,7 +101,7 @@ namespace FreeSql.Internal.CommonProvider
|
|||||||
if (objects == null) return;
|
if (objects == null) return;
|
||||||
var syncObjects = objects.Where(a => a.tableSchema?.Type != null &&
|
var syncObjects = objects.Where(a => a.tableSchema?.Type != null &&
|
||||||
(
|
(
|
||||||
a.tableSchema.Type.Name == "DynamicDbContext" && a.tableSchema.Columns.Any()
|
a.tableSchema.Type == typeof(object) && a.tableSchema.Columns.Any()
|
||||||
||
|
||
|
||||||
a.tableSchema.Type != typeof(object) && _dicSycedGetOrAdd(a.tableSchema.Type).ContainsKey(GetTableNameLowerOrUpper(a.tableName)) == false
|
a.tableSchema.Type != typeof(object) && _dicSycedGetOrAdd(a.tableSchema.Type).ContainsKey(GetTableNameLowerOrUpper(a.tableName)) == false
|
||||||
) &&
|
) &&
|
||||||
|
|||||||
@ -36,15 +36,41 @@ public static partial class FreeSqlPostgreSQLGlobalExtensions
|
|||||||
/// <returns></returns>
|
/// <returns></returns>
|
||||||
public static OnConflictDoUpdate<T1> OnConflictDoUpdate<T1>(this IInsert<T1> that, Expression<Func<T1, object>> columns = null) where T1 : class => new FreeSql.PostgreSQL.Curd.OnConflictDoUpdate<T1>(that.InsertIdentity(), columns);
|
public static OnConflictDoUpdate<T1> OnConflictDoUpdate<T1>(this IInsert<T1> that, Expression<Func<T1, object>> columns = null) where T1 : class => new FreeSql.PostgreSQL.Curd.OnConflictDoUpdate<T1>(that.InsertIdentity(), columns);
|
||||||
|
|
||||||
#region ExecutePgCopy
|
/// <summary>
|
||||||
/// <summary>
|
/// PostgreSQL<para></para>
|
||||||
/// 批量插入或更新（操作的字段数量超过 2000 时收益大）<para></para>
|
/// select distinct on(subject) * from score order by subject, score desc, name;
|
||||||
/// 实现原理：使用 PgCopy 插入临时表，再执行 INSERT INTO t1 select * from #temp ON CONFLICT(""id"") DO UPDATE SET ...
|
/// </summary>
|
||||||
/// </summary>
|
public static ISelect<T1> DistinctOn<T1, TKey>(this ISelect<T1> query, Expression<Func<T1, object>> selector)
|
||||||
/// <typeparam name="T"></typeparam>
|
{
|
||||||
/// <param name="that"></param>
|
var select = query as FreeSql.PostgreSQL.Curd.PostgreSQLSelect<T1>;
|
||||||
/// <returns></returns>
|
if (select == null) throw new Exception($"{nameof(DistinctOn)} 是 FreeSql.Provider.PostgreSQL 特有的功能");
|
||||||
public static int ExecutePgCopy<T>(this IInsertOrUpdate<T> that) where T : class
|
var s0p = select as Select0Provider;
|
||||||
|
var orderByOld = s0p._orderby;
|
||||||
|
var orderByNew = "";
|
||||||
|
try
|
||||||
|
{
|
||||||
|
s0p._orderby = null;
|
||||||
|
select.OrderBy(selector);
|
||||||
|
orderByNew = s0p._orderby;
|
||||||
|
}
|
||||||
|
finally
|
||||||
|
{
|
||||||
|
s0p._orderby = orderByOld;
|
||||||
|
}
|
||||||
|
if (orderByNew.StartsWith(" \r\nORDER BY "))
|
||||||
|
s0p._select = $"{s0p._select} distinct on({orderByNew.Substring(12)}) ";
|
||||||
|
return select;
|
||||||
|
}
|
||||||
|
|
||||||
|
#region ExecutePgCopy
|
||||||
|
/// <summary>
|
||||||
|
/// 批量插入或更新（操作的字段数量超过 2000 时收益大）<para></para>
|
||||||
|
/// 实现原理：使用 PgCopy 插入临时表，再执行 INSERT INTO t1 select * from #temp ON CONFLICT(""id"") DO UPDATE SET ...
|
||||||
|
/// </summary>
|
||||||
|
/// <typeparam name="T"></typeparam>
|
||||||
|
/// <param name="that"></param>
|
||||||
|
/// <returns></returns>
|
||||||
|
public static int ExecutePgCopy<T>(this IInsertOrUpdate<T> that) where T : class
|
||||||
{
|
{
|
||||||
var upsert = that as InsertOrUpdateProvider<T>;
|
var upsert = that as InsertOrUpdateProvider<T>;
|
||||||
if (upsert._source.Any() != true || upsert._tempPrimarys.Any() == false) return 0;
|
if (upsert._source.Any() != true || upsert._tempPrimarys.Any() == false) return 0;
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user