@java.lang.Override
      public boolean hasTimestamp() {
        return ((bitField0_ & 0x00000004) != 0);
      }
<code>optional int64 timestamp = 3;</code>
@return Whether the timestamp field is set.
ql/src/gen/protobuf/gen-java/org/apache/hadoop/hive/ql/hooks/proto/HiveHookEvents.java