Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/18853#discussion_r151037844
--- Diff: docs/sql-programming-guide.md ---
@@ -1490,6 +1490,13 @@ that these options will be deprecated in future
release as more optimizations ar
Configures the number of partitions to use when shuffling data for
joins or aggregations.
</td>
</tr>
+ <tr>
+ <td><code>spark.sql.typeCoercion.mode</code></td>
+ <td><code>default</code></td>
+ <td>
+ The <code>default</code> type coercion mode was used in spark
prior to 2.3, and so it continues to be the default to avoid breaking behavior.
However, it has logical inconsistencies. The <code>hive</code> mode is
preferred for most new applications, though it may require additional manual
casting.
--- End diff --
2.3 -> 2.3.0 to be clear?
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