miklosgergely commented on a change in pull request #787: HIVE-22239
URL: https://github.com/apache/hive/pull/787#discussion_r332380055
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUtils.java
##########
@@ -935,8 +942,11 @@ else
if(colTypeLowerCase.equals(serdeConstants.SMALLINT_TYPE_NAME)){
cs.setNumTrues(Math.max(1, numRows/2));
cs.setNumFalses(Math.max(1, numRows/2));
cs.setAvgColLen(JavaDataModel.get().primitive1());
- } else if (colTypeLowerCase.equals(serdeConstants.TIMESTAMP_TYPE_NAME) ||
- colTypeLowerCase.equals(serdeConstants.TIMESTAMPLOCALTZ_TYPE_NAME)) {
+ } else if (colTypeLowerCase.equals(serdeConstants.TIMESTAMP_TYPE_NAME)) {
+ cs.setAvgColLen(JavaDataModel.get().lengthOfTimestamp());
+ // epoch, seconds since epoch
+ cs.setRange(0, 2177452799L);
Review comment:
Is this 2038-12-31 11:59:59 PM GMT? Why is it hard coded to that? If there
is a reason for that, then I suggest to introduce a more meaningful constant
declaration, like this:
// Explanation why the timestamp range upper limit should be this date
private static final long TIMESTAMP_RANGE_UPPER_LIMIT = new
SimpleDateFormat("yyyy-MM-dd HH:mm:ss zzz").parse("2038-12-31 23:59:59
GMT").getTime() / 1000;
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org
For additional commands, e-mail: gitbox-h...@hive.apache.org
