Update documentation

docs/_sources/configs.rst.txt

@@ -142,7 +142,7 @@ Generic Configuration
      - Maximum number of bytes to use for the normalized key in prefix-sort. Use 0 to disable prefix-sort.
    * - prefixsort_min_rows
      - integer
-     - 130
+     - 128
      - Minimum number of rows to use prefix-sort. The default value has been derived using micro-benchmarking.
 
 .. _expression-evaluation-conf:

docs/_sources/monitoring/stats.rst.txt

@@ -190,3 +190,18 @@ These stats are reported by shuffle operators.
      - Indicates the vector serde kind used by an operator for shuffle with 1
        for Presto, 2 for CompactRow, 3 for UnsafeRow. It is reported by Exchange,
        MergeExchange and PartitionedOutput operators for now.
+
+PrefixSort
+----------
+These stats are reported by prefix sort.
+
+.. list-table::
+   :widths: 50 25 50
+   :header-rows: 1
+
+   * - Stats
+     - Unit
+     - Description
+   * - numPrefixSortKeys
+     -
+     - The number of columns sorted using prefix sort.

docs/configs.html

@@ -212,7 +212,7 @@ <h2>Generic Configuration<a class="headerlink" href="#generic-configuration" tit
 </tr>
 <tr class="row-odd"><td><p>prefixsort_min_rows</p></td>
 <td><p>integer</p></td>
-<td><p>130</p></td>
+<td><p>128</p></td>
 <td><p>Minimum number of rows to use prefix-sort. The default value has been derived using micro-benchmarking.</p></td>
 </tr>
 </tbody>

docs/monitoring/stats.html

@@ -296,6 +296,29 @@ <h2>Shuffle<a class="headerlink" href="#shuffle" title="Link to this heading">¶
 </tbody>
 </table>
 </section>
+<section id="prefixsort">
+<h2>PrefixSort<a class="headerlink" href="#prefixsort" title="Link to this heading">¶</a></h2>
+<p>These stats are reported by prefix sort.</p>
+<table class="docutils align-default">
+<colgroup>
+<col style="width: 40.0%" />
+<col style="width: 20.0%" />
+<col style="width: 40.0%" />
+</colgroup>
+<thead>
+<tr class="row-odd"><th class="head"><p>Stats</p></th>
+<th class="head"><p>Unit</p></th>
+<th class="head"><p>Description</p></th>
+</tr>
+</thead>
+<tbody>
+<tr class="row-even"><td><p>numPrefixSortKeys</p></td>
+<td></td>
+<td><p>The number of columns sorted using prefix sort.</p></td>
+</tr>
+</tbody>
+</table>
+</section>
 </section>
 
 
@@ -314,6 +337,7 @@ <h3><a href="../index.html">Table of Contents</a></h3>
 <li><a class="reference internal" href="#tablewriter">TableWriter</a></li>
 <li><a class="reference internal" href="#spilling">Spilling</a></li>
 <li><a class="reference internal" href="#shuffle">Shuffle</a></li>
+<li><a class="reference internal" href="#prefixsort">PrefixSort</a></li>
 </ul>
 </li>
 </ul>