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<title>7.25.15. grn_index_cursor — Groonga v10.1.1-31-g1e46ba6 documentation</title>
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<h1><span class="section-number">7.25.15. </span><code class="docutils literal notranslate"><span class="pre">grn_index_cursor</span></code><a class="headerlink" href="#grn-index-cursor" title="Permalink to this headline">¶</a></h1>
<div class="section" id="summary">
<h2><span class="section-number">7.25.15.1. </span>Summary<a class="headerlink" href="#summary" title="Permalink to this headline">¶</a></h2>
<p>TODO…</p>
</div>
<div class="section" id="example">
<h2><span class="section-number">7.25.15.2. </span>Example<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h2>
<p>TODO…</p>
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<h2><span class="section-number">7.25.15.3. </span>Reference<a class="headerlink" href="#reference" title="Permalink to this headline">¶</a></h2>
<dl class="c function">
<dt id="c.grn_index_cursor_open">
<a class="reference internal" href="grn_obj.html#c.grn_obj" title="grn_obj">grn_obj</a> *<code class="sig-name descname">grn_index_cursor_open</code><span class="sig-paren">(</span><a class="reference internal" href="grn_ctx.html#c.grn_ctx" title="grn_ctx">grn_ctx</a> *<em>ctx</em>, <a class="reference internal" href="grn_table_cursor.html#c.grn_table_cursor" title="grn_table_cursor">grn_table_cursor</a> *<em>tc</em>, <a class="reference internal" href="grn_obj.html#c.grn_obj" title="grn_obj">grn_obj</a> *<em>index</em>, grn_id <em>rid_min</em>, grn_id <em>rid_max</em>, int <em>flags</em><span class="sig-paren">)</span><a class="headerlink" href="#c.grn_index_cursor_open" title="Permalink to this definition">¶</a><br /></dt>
<dd><p><a class="reference internal" href="grn_table_cursor.html#c.grn_table_cursor" title="grn_table_cursor"><code class="xref c c-type docutils literal notranslate"><span class="pre">grn_table_cursor</span></code></a> から取得できるそれぞれのレコードについて、 <code class="docutils literal notranslate"><span class="pre">GRN_OBJ_COLUMN_INDEX</span></code> 型のカラムの値を順番に取り出すためのカーソルを生成して返します。</p>
<p>rid_min, rid_maxを指定して取得するレコードidの値を制限することができます。</p>
<p>戻り値であるgrn_index_cursorは <a class="reference internal" href="grn_obj.html#c.grn_obj_close" title="grn_obj_close"><code class="xref c c-func docutils literal notranslate"><span class="pre">grn_obj_close()</span></code></a> を使って解放します。</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>tc</strong> – 対象cursorを指定します。</p></li>
<li><p><strong>index</strong> – 対象インデックスカラムを指定します。</p></li>
<li><p><strong>rid_min</strong> – 出力するレコードidの下限を指定します。</p></li>
<li><p><strong>rid_max</strong> – 出力するレコードidの上限を指定します。</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="c function">
<dt id="c.grn_index_cursor_next">
grn_posting *<code class="sig-name descname">grn_index_cursor_next</code><span class="sig-paren">(</span><a class="reference internal" href="grn_ctx.html#c.grn_ctx" title="grn_ctx">grn_ctx</a> *<em>ctx</em>, <a class="reference internal" href="grn_obj.html#c.grn_obj" title="grn_obj">grn_obj</a> *<em>ic</em>, grn_id *<em>tid</em><span class="sig-paren">)</span><a class="headerlink" href="#c.grn_index_cursor_next" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>cursorの範囲内のインデックスの値を順番に取り出します。</p>
<p>tidにNULL以外を指定した場合は、index_cursorを作成するときに指定したtable_cursorの現在の対象レコードのidを返します。</p>
<p>戻り値である <code class="xref c c-type docutils literal notranslate"><span class="pre">grn_posting</span></code> 構造体は解放する必要はありません。</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>ic</strong> – 対象cursorを指定します。</p></li>
<li><p><strong>tid</strong> – テーブルレコードIDを指定します。</p></li>
</ul>
</dd>
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<li><a class="reference internal" href="#">7.25.15. <code class="docutils literal notranslate"><span class="pre">grn_index_cursor</span></code></a><ul>
<li><a class="reference internal" href="#summary">7.25.15.1. Summary</a></li>
<li><a class="reference internal" href="#example">7.25.15.2. Example</a></li>
<li><a class="reference internal" href="#reference">7.25.15.3. Reference</a></li>
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<h4>Previous topic</h4>
<p class="topless"><a href="grn_ii.html"
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