adding comments

apache · May 15, 2024 · 159a43d · 159a43d
1 parent d770c13
commit 159a43d
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala b/spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala
@@ -669,8 +669,10 @@ object QueryPlanSerde extends Logging with ShimQueryPlanSerde with CometExprShim
 
         case Cast(child, dt, timeZoneId, evalMode) =>
           val evalModeStr = if (evalMode.isInstanceOf[Boolean]) {
+            // Spark 3.2 & 3.3 has ansiEnabled boolean
             if (evalMode.asInstanceOf[Boolean]) "ANSI" else "LEGACY"
           } else {
+            // Spark 3.4+ has EvalMode enum with values LEGACY, ANSI, and TRY
             evalMode.toString
           }
           handleCast(child, inputs, dt, timeZoneId, evalModeStr)