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      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Author</dt>
      <dd style="margin-left: 8.5em">HAYASHI Kentaro &lt;hayas****@clear*****&gt;</dd>
      <dt style="clear: both; float: left; font-weight: bold; width: 8em">Date</dt>
      <dd style="margin-left: 8.5em">2015-01-28 16:21:33 +0900 (Wed, 28 Jan 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/commit/5959a86a2c7739c5ce464551ec0452da47995e1f">5959a86a2c7739c5ce464551ec0452da47995e1f</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, &quot;Liberation Mono&quot;, Courier, monospace; line-height: 1.2; padding: 0.5em; width: auto">doc: rewrite description about drilldown</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/groonga/groonga/commit/5959a86a2c7739c5ce464551ec0452da47995e1f#diff-0">doc/source/news.rst</a></li>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, 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: doc/source/news.rst (+7 -7)</span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, 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/commit/5959a86a2c7739c5ce464551ec0452da47995e1f#L0L20">...</a></span>
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<pre style="border: 0; font-family: Consolas, Menlo, &quot;Liberation Mono&quot;, 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">@@ -21,18 +21,18 @@ <span class="diff-context" style="background-color: #ffffaa; color: #000000">Improvements</span></span>
<span class="diff-not-changed" style="display: block; white-space: pre">   In previous versions, Groonga consumed larger initial file</span>
<span class="diff-not-changed" style="display: block; white-space: pre">   size on windows in contrast to UNIX like environment.</span>
<span class="diff-not-changed" style="display: block; white-space: pre">   To enable this feature, use ``GRN_IO_VERSION=1`` environment</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-  variable.</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-* Supported sum feature for drilldown. Here is the syntax how to use it.</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-  ``select --drilldown[label].calc_type SUM --drilldown[label].calc_target target_column``</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-  It returns drilldown result with max value in group.</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-* Supported ``MIN``, ``MAX``, ``AVG`` feature for drilldown. The syntax is same as</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+  variable. This feature isn't enabled by default because it is in experimental stage.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+* Supported ``SUM``, ``MIN``, ``MAX``, ``AVG`` feature for drilldown.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+  This feature is supported by extending newer drilldown syntax which supports label.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+  Specify ``SUM``, ``MIN``, ``MAX`` or ``AVG`` for :ref:`select-drilldown-calc-types`</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+  and target column for :ref:`select-drilldown-calc-target`.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+  The return value is calculated based on drilldown result in group.</span>
<span class="diff-added" style="background-color: #aaffaa; color: #000000; display: block; white-space: pre">+* Supported feature for drilldown. The syntax is same as</span>
<span class="diff-not-changed" style="display: block; white-space: pre">   sum feature. You can specify multiple 'calc_types' at the same time.</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> * [experimental] Added ``--with-jemalloc`` option to use ``jemalloc`` for ``malloc()/free()``.</span>
<span class="diff-not-changed" style="display: block; white-space: pre">   It'll improve performance on multi-threading usage.</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> * groonga-httpd: Supported long error message over ``NGX_MAX_ERROR_STR``.</span>
<span class="diff-not-changed" style="display: block; white-space: pre">   By this change, long error message (&gt;=2048) is not truncated.</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-* [doc] Added documents about :ref:`select-drilldown-limit`,</span>
<span class="diff-deleted" style="background-color: #ffaaaa; color: #000000; display: block; white-space: pre">-  :ref:`select-drilldown-calc-types`, :ref:`select-drilldown-calc-target` and more.</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> * groonga-httpd: Supported streaming dump functionality.</span>
<span class="diff-not-changed" style="display: block; white-space: pre"> </span>
<span class="diff-not-changed" style="display: block; white-space: pre"> Fixes</span>
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