Github user BryanCutler commented on a diff in the pull request: https://github.com/apache/spark/pull/20678#discussion_r170760936 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala --- @@ -1068,6 +1068,14 @@ object SQLConf { .booleanConf .createWithDefault(false) + val ARROW_FALLBACK_ENABLE = + buildConf("spark.sql.execution.arrow.fallback.enabled") + .doc("When true, the optimization by 'spark.sql.execution.arrow.enabled' " + + "could be disabled when it is unable to be used, and fallback to " + + "non-optimization.") --- End diff -- Just a suggestion: "When true, optimizations enabled by 'spark.sql.execution.arrow.enabled' will fallback automatically to non-optimized implementations if an error occurs."
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