vrozov commented on code in PR #5868:
URL: https://github.com/apache/hive/pull/5868#discussion_r2167594876


##########
ql/src/java/org/apache/hadoop/hive/ql/io/BatchToRowReader.java:
##########
@@ -518,7 +521,8 @@ public static TimestampWritableV2 
nextTimestamp(ColumnVector vector,
         result = (TimestampWritableV2) previous;
       }
       TimestampColumnVector tcv = (TimestampColumnVector) vector;
-      result.setInternal(tcv.time[row], tcv.nanos[row]);
+      result.set(Timestamp.ofEpochSecond(Math.floorDiv(tcv.time[row], 1000L), 
tcv.nanos[row],
+          tcv.isUTC() ? ZoneOffset.UTC : ZoneId.systemDefault()));

Review Comment:
   > PS: I have doubts that it works. We have UTC hardcoded in ReaderOptions:
   
   Please see "As I mentioned local time zone was tested using Spark unit 
tests. I don't see how this can be done inside Hive (that hardcodes UTC time 
zone), but if you have a suggestion I am open to it."



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