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<dt style="clear: both; float: left; font-weight: bold; width: 8em">Author</dt>
<dd style="margin-left: 8.5em">Tetsuro IKEDA <ikdtt****@gmail*****></dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">Date</dt>
<dd style="margin-left: 8.5em">2010-11-24 14:26:46 +0900 (Wed, 24 Nov 2010)</dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">New Revision</dt>
<dd style="margin-left: 8.5em"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f">699e267d78b1489a3a152248f36065d0ae55fb0f</a></dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">Log</dt>
<dd style="margin-left: 8.5em"><pre style="border: 1px solid #aaa; font-family: Consolas, Menlo, "Liberation Mono", Courier, monospace; line-height: 1.2; padding: 0.5em">fixed document.</pre></dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">Modified files</dt>
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<li><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#diff-0">doc/ja/source/userguide.rst</a></li>
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<pre style="border: 0; font-family: Consolas, Menlo, "Liberation Mono", Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal"><span class="diff-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre"> Modified: doc/ja/source/userguide.rst (+1 -1)</span>
<span class="diff-header-mark" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">===================================================================</span>
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<pre style="border: 0; font-family: Consolas, Menlo, "Liberation Mono", Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L285">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L286">286</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L287">287</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L288">288</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L289">289</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre"> </span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L290">290</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L291">291</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0L292">292</a></span>
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<pre style="border: 0; font-family: Consolas, Menlo, "Liberation Mono", Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R285">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R286">286</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R287">287</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R288">288</a></span>
<span class="diff-line-number-nothing" style="display: block; white-space: pre"> </span>
<span class="diff-line-number-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R289">289</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R290">290</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R291">291</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/mroonga/mroonga/commit/699e267d78b1489a3a152248f36065d0ae55fb0f#L0R292">292</a></span>
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<pre style="border: 0; font-family: Consolas, Menlo, "Liberation Mono", Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal"><span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -286,7 +286,7 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">groongaストレージエンジンの前身であるTritonn(MySQL+Senna)では</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre"> 備考：この高速化機能はインデックスを用いて実装されています。現在のところインデックスアクセスのみでレコードが特定できるパタンでのみ有効に機能します。</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> 全文検索時の ORDER BY LIMIT 高速化</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-----------------------------</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+-----------------------------------</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> 一般的にMySQLでは"ORDER BY"はインデックス経由のレコード参照が行えればほぼノーコストで処理可能であり、"LIMIT"は検索結果が大量にヒットする場合でも処理対象を限定することでコストを一定に抑える効果があります。</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
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