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https://issues.apache.org/jira/browse/HIVE-27077?focusedWorklogId=855720&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-855720
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ASF GitHub Bot logged work on HIVE-27077:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 10/Apr/23 07:12
Start Date: 10/Apr/23 07:12
Worklog Time Spent: 10m
Work Description: zhangbutao commented on PR #4058:
URL: https://github.com/apache/hive/pull/4058#issuecomment-1501487075
Antlr3 has been lost support long long ago. It will be great to upgrade to
Antlr4. Antrl4 grammar is more simple and cleaner than Antlr3.
But i think it is not easy to do this, there is maybe some Incompatibilities
need to be fixed.
Please see this ticket: https://issues.apache.org/jira/browse/HIVE-23177
@mlorek Could you please give more feadback? Thanks.
Issue Time Tracking
-------------------
Worklog Id: (was: 855720)
Time Spent: 2h (was: 1h 50m)
> upgrade hive grammar to Antlr4
> ------------------------------
>
> Key: HIVE-27077
> URL: https://issues.apache.org/jira/browse/HIVE-27077
> Project: Hive
> Issue Type: Improvement
> Components: Parser
> Reporter: Michal Lorek
> Assignee: Michal Lorek
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h
> Remaining Estimate: 0h
>
> Introducing new module parser-v4 that hosts hive grammar defined using Antlr4.
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