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<dt style="clear: both; float: left; font-weight: bold; width: 8em">Author</dt>
<dd style="margin-left: 8.5em">Kouhei Sutou <kou****@clear*****></dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">Date</dt>
<dd style="margin-left: 8.5em">2015-10-26 12:40:25 +0900 (Mon, 26 Oct 2015)</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/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6">489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6</a></dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">Message</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; width: auto">Add the next release information</pre></dd>
<dt style="clear: both; float: left; font-weight: bold; width: 8em">Modified files</dt>
<dd style="margin-left: 8.5em">
<ul>
<li><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33f">ja/_posts/2015-10-22-grn_ts.md</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; width: auto"><span class="diff-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre"> Modified: ja/_posts/2015-10-22-grn_ts.md (+11 -7)</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; width: auto"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL3">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL4">4</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL5">5</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL6">6</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL7">7</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL8">8</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL9">9</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/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL10">10</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL11">11</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL12">12</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL13">13</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/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL14">14</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL15">15</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL16">16</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL17">17</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL18">18</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL19">19</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL20">20</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL21">21</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL22">22</a></span>
<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL23">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL24">24</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL25">25</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL26">26</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL27">27</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL28">28</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL29">29</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL30">30</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL31">31</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL32">32</a></span>
<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL58">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL59">59</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL60">60</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL61">61</a></span>
<span class="diff-line-number-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL62">62</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL63">63</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL64">64</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fL65">65</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; width: auto"><span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR3">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR4">4</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR5">5</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR6">6</a></span>
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<span class="diff-line-number-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR7">7</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR8">8</a></span>
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<span class="diff-line-number-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR9">9</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR10">10</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR11">11</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR12">12</a></span>
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<span class="diff-line-number-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR13">13</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR14">14</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR15">15</a></span>
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<span class="diff-line-number-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR17">17</a></span>
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<span class="diff-line-number-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR21">21</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR23">23</a></span>
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<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR25">...</a></span>
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<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR34">34</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR35">35</a></span>
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<span class="diff-line-number-hunk-header" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR62">...</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR63">63</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR64">64</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR65">65</a></span>
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<span class="diff-line-number-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR66">66</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR67">67</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR68">68</a></span>
<span class="diff-line-number-not-changed" style="display: block; white-space: pre"><a href="https://github.com/groonga/groonga.org/commit/489ee2d4907fbfe5ecf677c6c128c97c37b6a0a6#diff-d8255b2ef746fd67984ca71c73d9e33fR69">69</a></span>
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<td class="diff-content" style="border: 1px solid #aaa">
<pre style="border: 0; font-family: Consolas, Menlo, "Liberation Mono", Courier, monospace; line-height: 1.2; margin: 0; padding: 0.5em; white-space: normal; width: auto"><span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -4,19 +4,21 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">title: grn_ts （ぐるんたす）の紹介</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre"> description: grn_ts を紹介します！</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> ---</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-## grn_ts （ぐるんたす）の紹介</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+## grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts （ぐるんたす）の紹介</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-Groonga の実験的な機能として， `select` の新しい内部エンジン grn_ts が追加されています． grn_ts の TS は Turbo Selector の略であり，まだ使えない機能がたくさんあるものの，単純なフィルタリングをおこなうだけであれば，従来エンジンより高速に動作します．以下, grn_ts の特徴や使い方を簡単に紹介します．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+Groonga の実験的な機能として， `select` の新しい内部エンジン grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts が追加されています． grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts の TS は Turbo Selector の略であり，まだ使えない機能がたくさんあるものの，単純なフィルタリングをおこなうだけであれば，従来エンジンより高速に動作します．以下, grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts の特徴や使い方を簡単に紹介します．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> ### 特徴</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-grn_ts は Groonga が列指向なデータベースであることを強く意識した実装となっているため，特にカラムの走査が高速です． 擬似乱数を保存した 10 列 x 100 万行のテーブルを使った実験では，索引を使わない検索速度が従来エンジンと比べて **約 10 倍** になることが確認されています．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts は Groonga が列指向なデータベースであることを強く意識した実装となっているため，特にカラムの走査が高速です． 擬似乱数を保存した 10 列 x 100 万行のテーブルを使った実験では，索引を使わない検索速度が従来エンジンと比べて **約 10 倍** になることが確認されています．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> 高速な検索以外の特徴として， `output_columns` に式を記述することができます．たとえば， `--output_columns '_id, _key, ColA + ColB'` と記述すれば， `_id`, `_key` に加えて `ColA + ColB` を評価した結果が出力されます．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-### <span class="diff-deleted-word" style="background-color: #f8cbcb; color: #000000">有効にする</span>方法</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+### <span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">組み込む</span>方法</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-grn_ts はまだ実験的な機能であり，デフォルトでは有効になっていません． grn_ts を有効化するには， `configure` スクリプトを実行するとき，以下のように指定してください． `GRN_WITH_TS` というマクロが定義され， grn_ts が有効になります．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+grn\_ts はまだ実験的な機能であり，現在リリースされているバージョン（5.0.8）ではデフォルトで組み込まれていません．自分でビルドして組み込む必要があります．次回リリースされるバージョン（5.0.9）からはビルドしなくてもデフォルトのビルドにgrn\_tsが組み込まれます．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+grn\_ts を組み込むには， `configure` スクリプトを実行するとき，以下のように指定してください． `GRN_WITH_TS` というマクロが定義され， grn\_ts が組み込まれます．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> ```</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> $ ./configure CFLAGS="-g -O2 -DGRN_WITH_TS"</span>
<span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -24,9 +26,11 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">$ ./configure CFLAGS="-g -O2 -DGRN_WITH_TS"</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> 現在は Ubuntu 14.04 で開発を進めているため，ほかの環境ではビルドに失敗したり，動作がおかしくなったりする可能性があります．問題が見つかったときは， [GitHub Issues](https://github.com/groonga/groonga/issues) や [メーリングリスト](http://lists.osdn.me/mailman/listinfo/groonga-dev) よりご連絡ください．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+なお，組み込んだだけでは使われません．次に示すように明示的にgrn\_tsを使うように指示する必要があります．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> ### 使い方</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-`select` の `filter` を指定するとき，先頭に `?` を追加すれば grn_ts が適用されます．以下に例を示します．以下の例において， `Table` は擬似乱数を保存した 10 列 x 100 万行のテーブルです．従来エンジンと grn_ts の検索時間を比較すると， grn_ts では約 1/10 に短縮されていることがわかります．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+`select` の `filter` を指定するとき，先頭に `?` を追加すれば grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts が適用されます．以下に例を示します．以下の例において， `Table` は擬似乱数を保存した 10 列 x 100 万行のテーブルです．従来エンジンと grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts の検索時間を比較すると， grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts では約 1/10 に短縮されていることがわかります．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> ```</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> > # 従来エンジン</span>
<span class="diff-hunk-header" style="background-color: #eaf2f5; color: #999999; display: block; white-space: pre">@@ -59,7 +63,7 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">$ ./configure CFLAGS="-g -O2 -DGRN_WITH_TS"</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> ### 制限事項</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-deleted" style="background-color: #ffdddd; color: #000000; display: block; white-space: pre">-現在， grn_ts で使える `select` のオプションは以下の通りです．</span>
<span class="diff-added" style="background-color: #dbffdb; color: #000000; display: block; white-space: pre">+現在， grn<span class="diff-added-word" style="background-color: #a6f3a6; color: #000000">\</span>_ts で使える `select` のオプションは以下の通りです．</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> - `filter`</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> - `output_columns`</span>
</pre>
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