[GitHub] [spark] viirya commented on a change in pull request #27478: [SPARK-25829][SQL] Add config `spark.sql.deduplicateMapKey.lastWinsPolicy.enabled` and change the default behavior

viirya commented on a change in pull request #27478: [SPARK-25829][SQL] Add config `spark.sql.deduplicateMapKey.lastWinsPolicy.enabled` and change the default behavior URL: https://github.com/apache/spark/pull/27478#discussion_r376253512 ## File path: docs/sql-migration-guide.md #

[GitHub] [spark] viirya commented on a change in pull request #27478: [SPARK-25829][SQL] Add config `spark.sql.deduplicateMapKey.lastWinsPolicy.enabled` and change the default behavior

viirya commented on a change in pull request #27478: [SPARK-25829][SQL] Add config `spark.sql.deduplicateMapKey.lastWinsPolicy.enabled` and change the default behavior URL: https://github.com/apache/spark/pull/27478#discussion_r376254342 ## File path: docs/sql-migration-guide.md #

[GitHub] [spark] viirya commented on a change in pull request #27478: [SPARK-25829][SQL] Add config `spark.sql.deduplicateMapKey.lastWinsPolicy.enabled` and change the default behavior

viirya commented on a change in pull request #27478: [SPARK-25829][SQL] Add config `spark.sql.deduplicateMapKey.lastWinsPolicy.enabled` and change the default behavior URL: https://github.com/apache/spark/pull/27478#discussion_r376254710 ## File path: sql/catalyst/src/main/scala/o