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https://issues.apache.org/jira/browse/HIVE-24701?focusedWorklogId=543895&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-543895
]
ASF GitHub Bot logged work on HIVE-24701:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Jan/21 21:42
Start Date: 28/Jan/21 21:42
Worklog Time Spent: 10m
Work Description: miklosgergely commented on a change in pull request
#1927:
URL: https://github.com/apache/hive/pull/1927#discussion_r566425919
##########
File path:
common/src/java/org/apache/hadoop/hive/common/type/TimestampTZUtil.java
##########
@@ -125,11 +125,6 @@ public static TimestampTZ parseOrNull(String s, ZoneId
defaultTimeZone) {
}
}
- // Converts Date to TimestampTZ.
- public static TimestampTZ convert(Date date, ZoneId defaultTimeZone) {
- return parse(date.toString(), defaultTimeZone);
- }
-
// Converts Timestamp to TimestampTZ.
public static TimestampTZ convert(Timestamp ts, ZoneId defaultTimeZone) {
Review comment:
Nice catch, this is indeed an unnecessarily slow solution! This other
convert function right next to it has the same issue, please fix that too in
the same patch!
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Issue Time Tracking
-------------------
Worklog Id: (was: 543895)
Time Spent: 20m (was: 10m)
> Remove String Manipulation from Date Parsing TimestampTZUtil
> ------------------------------------------------------------
>
> Key: HIVE-24701
> URL: https://issues.apache.org/jira/browse/HIVE-24701
> Project: Hive
> Issue Type: Improvement
> Reporter: David Mollitor
> Assignee: David Mollitor
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> This operation is pretty slow:
> {code:java}
> // Converts Date to TimestampTZ.
> public static TimestampTZ convert(Date date, ZoneId defaultTimeZone) {
> return parse(date.toString(), defaultTimeZone);
> }
> {code}
> To convert from Date to TimestampTZ, it creates a string, then parses it.
> Should be able to just look at the epoch time and do the conversion without
> all the string manipulation/parsing.
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