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62 lines
4.2 KiB
62 lines
4.2 KiB
<HTML><HEAD><TITLE>Microsoft.FSharp.Linq.Query</TITLE><link rel="stylesheet" type="text/css"href="../msdn.css"></link></HEAD><BODY>
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<br><dl>
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<h1>[<a href='../namespaces.html'>Home</a>] Module <a href='Microsoft.FSharp.html'>Microsoft.FSharp</a>.<a href='Microsoft.FSharp.Linq.html'>Linq</a>.Query </h1><br>
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</dd>
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<dt></dt><dd>
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<table>
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<tr valign='top'><td>
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<dt><h3>Values</h3></dt><dd>
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<table width="100%%">
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<tr><th width=60%>Value</th><th>Description</th></tr>
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<tr valign="top"><td><pre>val contains : 'T -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'T> -> <a href='../FSharp.Core/Microsoft.FSharp.Core.type__bool.html'>bool</a></pre></td><td><summary>
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When used in queries, this operator corresponds to the LINQ Min operator and the <tt>query</tt> convertor recognises it as such
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It differs in return type from <tt>Seq.min_by</tt>
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</summary></td></tr>
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<tr valign="top"><td><pre>val groupBy :
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('T -> 'Key) -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'T> -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><IGrouping<'Key,'T>></pre></td><td><summary>
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When used in queries, this operator corresponds to the LINQ Join operator and the <tt>query</tt> convertor recognises it as such
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</summary></td></tr>
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<tr valign="top"><td><pre>val groupJoin :
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<a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Outer> ->
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<a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Inner> ->
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('Outer -> 'Key) ->
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('Inner -> 'Key) ->
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('Outer -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Inner> -> 'Result) -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Result></pre></td><td><summary>
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This join operator implements the LINQ GroupJoin operator and the <tt>query</tt> convertor recognises it as such
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</summary></td></tr>
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<tr valign="top"><td><pre>val join :
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<a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Outer> ->
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<a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Inner> ->
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('Outer -> 'Key) ->
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('Inner -> 'Key) -> ('Outer -> 'Inner -> 'Result) -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'Result></pre></td><td><summary>
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This join operator corresponds to the LINQ Join operator and the <tt>query</tt> convertor recognises it as such
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</summary></td></tr>
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<tr valign="top"><td><pre>val maxBy : ('T -> 'Key) -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'T> -> 'Key</pre></td><td><summary>
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When used in queries, this operator corresponds to the LINQ Max operator and the <tt>query</tt> convertor recognises it as such
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It differs in return type from <tt>Seq.max_by</tt>
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</summary></td></tr>
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<tr valign="top"><td><pre>val minBy : ('T -> 'Key) -> <a href='../FSharp.Core/Microsoft.FSharp.Collections.type__seq-1.html'>seq</a><'T> -> 'Key</pre></td><td><summary>
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When used in queries, this operator corresponds to the LINQ Min operator and the <tt>query</tt> convertor recognises it as such
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It differs in return type from <tt>Seq.min_by</tt>
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</summary></td></tr>
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<tr valign="top"><td><pre>val query : <a href='../FSharp.Core/Microsoft.FSharp.Quotations.type_Expr-1.html'>Expr</a><'T> -> 'T</pre></td><td><summary>
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Evaluate the quotation expression by first converting to a LINQ expression tree
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making use of IQueryable operators and then executing expression tree
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Exceptions: <tt>InvalidArgumentException</tt> will be raised if the input expression is
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not in the subset that can be converted to a LINQ expression tree
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</summary></td></tr>
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</table>
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</dd>
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</td></tr>
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<tr valign='top'><td>
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<dt><h3>See Also</h3></dt><dd>
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<a href="Microsoft.FSharp.Linq.html">Microsoft.FSharp.Linq</a> </dd>
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</td></tr>
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</table>
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</dd>
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</dl>
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<br /> <br/><p><i>Documentation for assembly FSharp.PowerPack.Linq, version 1.9.6.16, generated using <a href='http://research.microsoft.com/fsharp/'>F# Programming Language</a> version 1.9.6.16</i></p>
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