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| <h3>Method</h3> |
| <h1><a href="index.html">Arrow</a><span class="sep"></span><a href="class.UnionArrayBuilder.html">UnionArrayBuilder</a><span class="sep"></span>append_value</h1> |
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| <p><span class="emblem available">since: 12.0.0</span></p> |
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| Declaration |
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| <div class="docblock c-decl"> |
| <pre><code><div class="highlight"><pre><span></span><span class="n">gboolean</span> |
| <span class="n">garrow_union_array_builder_append_value</span><span class="w"> </span><span class="p">(</span> |
| <span class="w"> </span><span class="n">GArrowUnionArrayBuilder</span><span class="o">*</span><span class="w"> </span><span class="n">builder</span><span class="p">,</span> |
| <span class="w"> </span><span class="n">gint8</span><span class="w"> </span><span class="n">value</span><span class="p">,</span> |
| <span class="w"> </span><span class="n">GError</span><span class="o">**</span><span class="w"> </span><span class="n">error</span> |
| <span class="p">)</span> |
| </pre></div> |
| </code></pre> |
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| Description |
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| <a class="srclink" title="go to source location" href="https://github.com/apache/arrow/blob/main/c_glib/arrow-glib/array-builder.cpp#L6547">[src]</a> |
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| </h4> |
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| <div class="docblock"> |
| <p>Append an element to the union array.</p> |
| <p>If <code>builder</code> is <code>GArrowDenseUnionArrayBuilder</code>, this must be followed by an |
| append to the appropriate child builder.</p> |
| <p>If <code>builder</code> is <code>GArrowSparseUnionArrayBuilder</code>, this must be |
| followed by appends to all child builders. The corresponding child |
| builder must be appended to independently after this method is |
| called, and all other child builders must have null or empty value appended.</p> |
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| <p>Available since: 12.0.0</p> |
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| Parameters |
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| <dl class="arguments"> |
| |
| <dt class="arg-name"><code>value</code></dt> |
| <dd class="arg-description"> |
| <p><em>Type:</em> <code>gint8</code></p> |
| <p><p>A type <span class="caps">ID</span> value.</p></p> |
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| <dt class="arg-name"><code>error</code></dt> |
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| <p><em>Type:</em> <a href="javascript:void(0)" data-namespace="GLib" data-link="struct.Error.html" class="external"><code>GError **</code></a></p> |
| <p>The return location for <a href="https://docs.gtk.org/glib/error-reporting.html#rules-for-use-of-gerror">a recoverable error</a>.</p> |
| <table> |
| <tr><td>The argument can be <code>NULL</code>.</td></tr> |
| <tr><td>If the return location is not <code>NULL</code>, then you must initialize it to a <code>NULL</code> <code>GError*</code>.</td></tr> |
| <tr><td>The argument will left initialized to <code>NULL</code> by the method if there are no errors.</td></tr> |
| <tr><td>In case of error, the argument will be set to a newly allocated <code>GError</code>; the caller will take ownership of the data, and be responsible for freeing it.</td></tr> |
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| Return value |
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| <p><em>Type:</em> <code>gboolean</code></p> |
| <p><p><code>TRUE</code> on success, <code>FALSE</code> if there was an error.</p></p> |
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