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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