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* basic Jekyll site
* Add docs to documentation site
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<p class='location'>Crate mentat_query_projector</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#modules">Modules</a></li><li><a href="#macros">Macros</a></li><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#traits">Traits</a></li><li><a href="#functions">Functions</a></li><li><a href="#types">Type Definitions</a></li></ul></div><p class='location'></p><script>window.sidebarCurrent = {name: 'mentat_query_projector', ty: 'mod', relpath: '../'};</script></div>
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<section id='main' class="content"><h1 class='fqn'><span class='in-band'>Crate <a class="mod" href=''>mentat_query_projector</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../src/mentat_query_projector/lib.rs.html#11-517' title='goto source code'>[src]</a></span></h1><h2 id='modules' class='section-header'><a href="#modules">Modules</a></h2>
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<td><a class="struct" href="struct.CombinedProjection.html"
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title='struct mentat_query_projector::CombinedProjection'>CombinedProjection</a></td>
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<td class='docblock-short'>
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<p>Combines the things you need to turn a query into SQL and turn its results into
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<code>QueryResults</code>: SQL-related projection information (<code>DISTINCT</code>, columns, etc.) and
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a Datalog projector that turns SQL into structures.</p>
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title='struct mentat_query_projector::ConstantProjector'>ConstantProjector</a></td>
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<td class='docblock-short'>
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<p>A projector that produces a <code>QueryResult</code> containing fixed data.
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Takes a boxed function that should return an empty result set of the desired type.</p>
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</td>
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title='struct mentat_query_projector::QueryOutput'>QueryOutput</a></td>
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title='struct mentat_query_projector::RelResult'>RelResult</a></td>
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<td class='docblock-short'>
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<p>The result you get from a 'rel' query, like:</p>
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</td>
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<td><a class="enum" href="enum.QueryResults.html"
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title='enum mentat_query_projector::QueryResults'>QueryResults</a></td>
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title='enum mentat_query_projector::SimpleAggregationOp'>SimpleAggregationOp</a></td>
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</td>
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<td><a class="trait" href="trait.Projector.html"
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title='trait mentat_query_projector::Projector'>Projector</a></td>
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title='fn mentat_query_projector::projected_column_for_var'>projected_column_for_var</a></td>
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<td class='docblock-short'>
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<p>Return the projected column -- that is, a value or SQL column and an associated name -- for a
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given variable. Also return the type.
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Callers are expected to determine whether to project a type tag as an additional SQL column.</p>
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title='fn mentat_query_projector::query_projection'>query_projection</a></td>
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<td class='docblock-short'>
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<p>Compute a suitable SQL projection for an algebrized query.
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This takes into account a number of things:</p>
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</td>
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