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<p class='location'>Enum ColumnOrExpression</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#variants">Variants</a><div class="sidebar-links"><a href="#variant.Column">Column</a><a href="#variant.ExistingColumn">ExistingColumn</a><a href="#variant.Entid">Entid</a><a href="#variant.Integer">Integer</a><a href="#variant.Long">Long</a><a href="#variant.Value">Value</a><a href="#variant.NullableAggregate">NullableAggregate</a><a href="#variant.Expression">Expression</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-From%3CQueryValue%3E">From&lt;QueryValue&gt;</a><a href="#impl-QueryFragment">QueryFragment</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a></div></div><p class='location'><a href='index.html'>mentat_query_sql</a></p><script>window.sidebarCurrent = {name: 'ColumnOrExpression', ty: 'enum', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<section id='main' class="content"><h1 class='fqn'><span class='in-band'>Enum <a href='index.html'>mentat_query_sql</a>::<wbr><a class="enum" href=''>ColumnOrExpression</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../src/mentat_query_sql/lib.rs.html#59-70' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust enum'>pub enum ColumnOrExpression {
Column(<a class="struct" href="../mentat_query_algebrizer/types/struct.QualifiedAlias.html" title="struct mentat_query_algebrizer::types::QualifiedAlias">QualifiedAlias</a>),
ExistingColumn(<a class="type" href="../mentat_query_sql/type.Name.html" title="type mentat_query_sql::Name">Name</a>),
Entid(<a class="type" href="../mentat_core/types/type.Entid.html" title="type mentat_core::types::Entid">Entid</a>),
Integer(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>),
Long(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>),
Value(<a class="enum" href="../mentat_core/types/enum.TypedValue.html" title="enum mentat_core::types::TypedValue">TypedValue</a>),
NullableAggregate(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;<a class="enum" href="../mentat_query_sql/enum.Expression.html" title="enum mentat_query_sql::Expression">Expression</a>&gt;,&nbsp;<a class="enum" href="../mentat_core/types/enum.ValueType.html" title="enum mentat_core::types::ValueType">ValueType</a>),
Expression(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;<a class="enum" href="../mentat_query_sql/enum.Expression.html" title="enum mentat_query_sql::Expression">Expression</a>&gt;,&nbsp;<a class="enum" href="../mentat_core/types/enum.ValueType.html" title="enum mentat_core::types::ValueType">ValueType</a>),
}</pre></div><div class='docblock'><p>One of the things that can appear in a projection or a constraint. Note that we use
<code>TypedValue</code> here; it's not pure SQL, but it avoids us having to concern ourselves at this
point with the translation between a <code>TypedValue</code> and the storage-layer representation.</p>
<p>Eventually we might allow different translations by providing a different <code>QueryBuilder</code>
implementation for each storage backend. Passing <code>TypedValue</code>s here allows for that.</p>
</div><h2 id='variants' class='variants small-section-header'>
Variants<a href='#variants' class='anchor'></a></h2>
<span id="variant.Column" class="variant small-section-header"><a href="#variant.Column" class="anchor field"></a><span id='Column.v' class='invisible'><code>Column(<a class="struct" href="../mentat_query_algebrizer/types/struct.QualifiedAlias.html" title="struct mentat_query_algebrizer::types::QualifiedAlias">QualifiedAlias</a>)</code></span></span><span id="variant.ExistingColumn" class="variant small-section-header"><a href="#variant.ExistingColumn" class="anchor field"></a><span id='ExistingColumn.v' class='invisible'><code>ExistingColumn(<a class="type" href="../mentat_query_sql/type.Name.html" title="type mentat_query_sql::Name">Name</a>)</code></span></span><span id="variant.Entid" class="variant small-section-header"><a href="#variant.Entid" class="anchor field"></a><span id='Entid.v' class='invisible'><code>Entid(<a class="type" href="../mentat_core/types/type.Entid.html" title="type mentat_core::types::Entid">Entid</a>)</code></span></span><span id="variant.Integer" class="variant small-section-header"><a href="#variant.Integer" class="anchor field"></a><span id='Integer.v' class='invisible'><code>Integer(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>)</code></span></span><span id="variant.Long" class="variant small-section-header"><a href="#variant.Long" class="anchor field"></a><span id='Long.v' class='invisible'><code>Long(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)</code></span></span><span id="variant.Value" class="variant small-section-header"><a href="#variant.Value" class="anchor field"></a><span id='Value.v' class='invisible'><code>Value(<a class="enum" href="../mentat_core/types/enum.TypedValue.html" title="enum mentat_core::types::TypedValue">TypedValue</a>)</code></span></span><span id="variant.NullableAggregate" class="variant small-section-header"><a href="#variant.NullableAggregate" class="anchor field"></a><span id='NullableAggregate.v' class='invisible'><code>NullableAggregate(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;<a class="enum" href="../mentat_query_sql/enum.Expression.html" title="enum mentat_query_sql::Expression">Expression</a>&gt;,&nbsp;<a class="enum" href="../mentat_core/types/enum.ValueType.html" title="enum mentat_core::types::ValueType">ValueType</a>)</code></span></span><span id="variant.Expression" class="variant small-section-header"><a href="#variant.Expression" class="anchor field"></a><span id='Expression.v' class='invisible'><code>Expression(<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;<a class="enum" href="../mentat_query_sql/enum.Expression.html" title="enum mentat_query_sql::Expression">Expression</a>&gt;,&nbsp;<a class="enum" href="../mentat_core/types/enum.ValueType.html" title="enum mentat_core::types::ValueType">ValueType</a>)</code></span></span>
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<h3 id='impl-From%3CQueryValue%3E' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="enum" href="../mentat_query_algebrizer/types/enum.QueryValue.html" title="enum mentat_query_algebrizer::types::QueryValue">QueryValue</a>&gt; for <a class="enum" href="../mentat_query_sql/enum.ColumnOrExpression.html" title="enum mentat_query_sql::ColumnOrExpression">ColumnOrExpression</a></code><a href='#impl-From%3CQueryValue%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_query_sql/lib.rs.html#77-86' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='docblock'><p><code>QueryValue</code> and <code>ColumnOrExpression</code> are almost identical… merge somehow?</p>
</div><div class='impl-items'><h4 id='method.from' class="method"><span id='from.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(v: <a class="enum" href="../mentat_query_algebrizer/types/enum.QueryValue.html" title="enum mentat_query_algebrizer::types::QueryValue">QueryValue</a>) -&gt; Self</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_query_sql/lib.rs.html#78-85' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs the conversion.</p>
</div></div><h3 id='impl-QueryFragment' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../mentat_sql/trait.QueryFragment.html" title="trait mentat_sql::QueryFragment">QueryFragment</a> for <a class="enum" href="../mentat_query_sql/enum.ColumnOrExpression.html" title="enum mentat_query_sql::ColumnOrExpression">ColumnOrExpression</a></code><a href='#impl-QueryFragment' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_query_sql/lib.rs.html#266-297' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.push_sql' class="method"><span id='push_sql.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../mentat_sql/trait.QueryFragment.html#tymethod.push_sql' class='fnname'>push_sql</a>(&amp;self, out: &amp;mut <a class="trait" href="../mentat_sql/trait.QueryBuilder.html" title="trait mentat_sql::QueryBuilder">QueryBuilder</a>) -&gt; <a class="type" href="../mentat_sql/type.BuildQueryResult.html" title="type mentat_sql::BuildQueryResult">BuildQueryResult</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_query_sql/lib.rs.html#267-296' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4></div></div>
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<h3 id='impl-Send' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="enum" href="../mentat_query_sql/enum.ColumnOrExpression.html" title="enum mentat_query_sql::ColumnOrExpression">ColumnOrExpression</a></code><a href='#impl-Send' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="enum" href="../mentat_query_sql/enum.ColumnOrExpression.html" title="enum mentat_query_sql::ColumnOrExpression">ColumnOrExpression</a></code><a href='#impl-Sync' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div></div></section>
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