[GitHub] [spark] maropu commented on a change in pull request #26418: [SPARK-29783][SQL] Support SQL Standard/ISO_8601 output style for interval type

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maropu commented on a change in pull request #26418: [SPARK-29783][SQL] Support SQL Standard/ISO_8601 output style for interval type
URL: https://github.com/apache/spark/pull/26418#discussion_r345505044
 
 

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 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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 @@ -1774,6 +1773,21 @@ object SQLConf {
     .booleanConf
     .createWithDefault(false)
 
+  object IntervalStyle extends Enumeration {
+    type IntervalStyle = Value
+    val SQL_STANDARD, ISO_8601, MULTI_UNITS = Value
+  }
+
+  val INTERVAL_STYLE = buildConf("spark.sql.intervalOutputStyle")
 
 Review comment:
   fyi: we might need to move this config into `spark.sql.dialect.xxx` along https://github.com/apache/spark/pull/26444

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