Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/8467#discussion_r38270316
--- Diff: docs/sql-programming-guide.md ---
@@ -1371,6 +1380,26 @@ Configuration of Parquet can be done using the
`setConf` method on `SQLContext`
</p>
</td>
</tr>
+<tr>
+ <td><code>spark.sql.parquet.mergeSchema</code></td>
+ <td><code>false</code></td>
+ <td>
+ <p>
+ When true, the Parquet data source merges schemas collected from all
data files, otherwise the
+ schema is picked from the summary file or a random data file if no
summary file is available.
+ </p>
+ </td>
+</tr>
+<tr>
+ <td><code>spark.sql.parquet.mergeSchema</code></td>
--- End diff --
Agree with @srowen. Michael has already fixed this issue while merging
#8520 though.
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