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Subject [GitHub] [spark] cloud-fan commented on a change in pull request #26418: [SPARK-29783][SQL] Support SQL Standard/ISO_8601 output style for interval type
Date Tue, 12 Nov 2019 16:57:23 GMT
cloud-fan 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_r345326064
 
 

 ##########
 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
 ##########
 @@ -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")
+    .doc("Display format for interval values. The value SQL_STANDARD will produce output"
+
 
 Review comment:
   display is not accurate as this controls the cast behavior as well. How about `When converting
interval values to strings (e.f. for display), this config decides the interval string format.
The value SQL_STANDARD  ...`

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