MINOR - Fix typo in Streams Dev Guide
Reviewers: Matthias J. Sax Guozhang Wang
</thead>
<tbody valign="top">
<tr class="row-even"><td>1</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr class="row-odd"><td>2</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>[B, b]</td>
</tr>
<tr class="row-even"><td>7</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
- <td>null (tombstone)</td>
+ <td>null</td>
+ <td>null</td>
<td>[null, b]</td>
</tr>
<tr class="row-odd"><td>8</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
+ <td>null</td>
</tr>
<tr class="row-even"><td>9</td>
<td>C</td>
</tr>
<tr class="row-even"><td>11</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
- <td>null (tombstone)</td>
+ <td>null</td>
+ <td>null</td>
<td>[C, null]</td>
<td>[C, null]</td>
</tr>
<tr class="row-odd"><td>12</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
- <td>null (tombstone)</td>
+ <td>null</td>
+ <td>null</td>
</tr>
<tr class="row-even"><td>13</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
cell denotes that the <code class="docutils literal"><span class="pre">ValueJoiner</span></code> is not called at all.</p>
<table border="1" class="docutils">
<colgroup>
- <col width="10%" />
- <col width="16%" />
- <col width="16%" />
- <col width="29%" />
- <col width="29%" />
+ <col>
+ <col>
+ <col>
+ <col>
+ <col>
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">Timestamp</th>
</tr>
<tr class="row-odd"><td>2</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
</tr>
<tr class="row-odd"><td>8</td>
<td>&nbsp;</td>
- <td>null (tombstone)</td>
+ <td>null</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
