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<p class='location'>Trait SQLValueTypeSet</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.value_type_tags">value_type_tags</a><a href="#tymethod.has_unique_type_tag">has_unique_type_tag</a><a href="#tymethod.unique_type_tag">unique_type_tag</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-SQLValueTypeSet">ValueTypeSet</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>mentat_core</a></p><script>window.sidebarCurrent = {name: 'SQLValueTypeSet', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>mentat_core</a>::<wbr><a class="trait" href=''>SQLValueTypeSet</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../src/mentat_core/sql_types.rs.html#91-95' title='goto source code'>[src]</a></span></h1>
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<pre class='rust trait'>pub trait SQLValueTypeSet {
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fn <a href='#tymethod.value_type_tags' class='fnname'>value_type_tags</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/btree/set/struct.BTreeSet.html" title="struct alloc::btree::set::BTreeSet">BTreeSet</a><<a class="type" href="../mentat_core/type.ValueTypeTag.html" title="type mentat_core::ValueTypeTag">ValueTypeTag</a>>;
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<div class='item-spacer'></div> fn <a href='#tymethod.has_unique_type_tag' class='fnname'>has_unique_type_tag</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
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<div class='item-spacer'></div> fn <a href='#tymethod.unique_type_tag' class='fnname'>unique_type_tag</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="../mentat_core/type.ValueTypeTag.html" title="type mentat_core::ValueTypeTag">ValueTypeTag</a>>;
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}</pre><div class='docblock'><p>We have an enum of types, <code>ValueType</code>. It can be collected into a set, <code>ValueTypeSet</code>. Each type
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is associated with a type tag, which is how a type is represented in, e.g., SQL storage. Types
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can share type tags, because backing SQL storage is able to differentiate between some types
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(e.g., longs and doubles), and so distinct tags aren't necessary. That association is defined by
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<code>SQLValueType</code>. That trait similarly extends to <code>ValueTypeSet</code>, which maps a collection of types
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into a collection of tags.</p>
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Required Methods<a href='#required-methods' class='anchor'></a>
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<h3 id='tymethod.value_type_tags' class='method'><span id='value_type_tags.v' class='invisible'><code>fn <a href='#tymethod.value_type_tags' class='fnname'>value_type_tags</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/btree/set/struct.BTreeSet.html" title="struct alloc::btree::set::BTreeSet">BTreeSet</a><<a class="type" href="../mentat_core/type.ValueTypeTag.html" title="type mentat_core::ValueTypeTag">ValueTypeTag</a>></code></span></h3><h3 id='tymethod.has_unique_type_tag' class='method'><span id='has_unique_type_tag.v' class='invisible'><code>fn <a href='#tymethod.has_unique_type_tag' class='fnname'>has_unique_type_tag</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><h3 id='tymethod.unique_type_tag' class='method'><span id='unique_type_tag.v' class='invisible'><code>fn <a href='#tymethod.unique_type_tag' class='fnname'>unique_type_tag</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="../mentat_core/type.ValueTypeTag.html" title="type mentat_core::ValueTypeTag">ValueTypeTag</a>></code></span></h3></div>
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Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a>
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<h3 id='impl-SQLValueTypeSet' class='impl'><span class='in-band'><code>impl <a class="trait" href="../mentat_core/trait.SQLValueTypeSet.html" title="trait mentat_core::SQLValueTypeSet">SQLValueTypeSet</a> for <a class="struct" href="../core_traits/value_type_set/struct.ValueTypeSet.html" title="struct core_traits::value_type_set::ValueTypeSet">ValueTypeSet</a></code><a href='#impl-SQLValueTypeSet' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_core/sql_types.rs.html#97-129' title='goto source code'>[src]</a></span></h3>
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<span class='docblock autohide'><div class='impl-items'><h4 id='method.value_type_tags' class="method"><span id='value_type_tags.v-1' class='invisible'><code>fn <a href='#method.value_type_tags' class='fnname'>value_type_tags</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/btree/set/struct.BTreeSet.html" title="struct alloc::btree::set::BTreeSet">BTreeSet</a><<a class="type" href="../mentat_core/type.ValueTypeTag.html" title="type mentat_core::ValueTypeTag">ValueTypeTag</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_core/sql_types.rs.html#99-105' title='goto source code'>[src]</a></span></h4>
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<h4 id='method.unique_type_tag' class="method"><span id='unique_type_tag.v-1' class='invisible'><code>fn <a href='#method.unique_type_tag' class='fnname'>unique_type_tag</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="../mentat_core/type.ValueTypeTag.html" title="type mentat_core::ValueTypeTag">ValueTypeTag</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mentat_core/sql_types.rs.html#107-113' title='goto source code'>[src]</a></span></h4>
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