public static Microsoft.StreamProcessing.IStreamable<TKey,TResult> Join<TKey,TLeft,TRight,TResult> (this Microsoft.StreamProcessing.IStreamable<TKey,TLeft> left, Microsoft.StreamProcessing.IStreamable<TKey,TRight> right, System.Linq.Expressions.Expression<Func<TLeft,TRight,TResult>> resultSelect...
这个join 主要支持等值比较条件的 join,通过 hashjoin 实现, 代码位于 join_ 方法内, linq4j 这个方法的实现是首先对 inner 表(join 的第二个 enumerable) 构造 lookup(hashMap<k, list<v>>), 之后通过在 Enumerable#moveNext 实现中, move outer 表并去 probe 刚才构建的内表 lookup, 并合并选择返回结果>...
Linq.Mapping Namespace System.Data.Linq.SqlClient Namespace System.Data.Services.Client Namespace System.Data.Services.Common Namespace System.Diagnostics Namespace System.Diagnostics.CodeAnalysis Namespace System.Diagnostics.Contracts Namespace System.Diagnostics.Contracts.Internal Namespace Sys...
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The UI code includes event handler methods to save time and avoid page navigation, which also reduces unresponsive web pages and uninterruptible threads. The join() method is similar to other parallel methods such as TThread and WaitFor(), and is mainly used for multi-threading. Thread pooling...
C# LINQ List<KeyValuePair<string, KeyValuePair<int, int>>> Group by to List<KeyValuePair<string, List<KeyValuePair<int, int>>> C# LINQ one condition, return multiple columns and rows C# LINQ order by not working for a SQL table with a primary key C# LinQ query to pull top 3 recor...
This method is particular useful with Language-Integrated Query (LINQ) query expressions. For example, the following code defines a very simple Animal class that contains the name of an animal and the order to which it belongs. It then defines aList<T>object that contains a number...
Linq Namespace System.Data.Linq.Mapping Namespace System.Data.Linq.SqlClient Namespace System.Data.Services.Client Namespace System.Data.Services.Common Namespace System.Diagnostics Namespace System.Diagnostics.CodeAnalysis Namespace System.Diagnostics.Contracts Namespace System.Diagnostics.Contrac...
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Join(String, IEnumerable<String>) is a convenience method that lets you concatenate each element in an IEnumerable(Of String) collection without first converting the elements to a string array. It is particularly useful with Language-Integrated Query (LINQ) query expressions. The foll...