update comment

Signed-off-by: Andy Grove <[email protected]>
NVIDIA · Nov 1, 2023 · e7a1c13 · e7a1c13
1 parent 9e982b3
commit e7a1c13
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuCast.scala b/sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuCast.scala
@@ -775,8 +775,10 @@ object GpuCast {
 
   private def castTimestampToJson(input: ColumnView): ColumnVector = {
     withResource(input.castTo(DType.TIMESTAMP_MILLISECONDS)) { millis =>
-      // we fall back to CPU if the JSON timezone is not `Z`, so it is safe
-      // to hard-code it here
+      // we fall back to CPU if the JSON timezone is not UTC, so it is safe
+      // to hard-code `Z` here for now, but we should really add a timestamp
+      // format to CastOptions when we add support for custom formats in
+      // https://github.com/NVIDIA/spark-rapids/issues/9602
       millis.asStrings("%Y-%m-%dT%H:%M:%S.%3fZ")
     }
   }