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https://issues.apache.org/jira/browse/HIVE-12986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15460846#comment-15460846
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Zoltan Haindrich commented on HIVE-12986:
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[~sershe] i was looking for tickets about upgrading antlr3 to antlr4 - I think
it would make the project more consistent...and also it will possibly make it
easier to add new features to the grammar.
Can you remember why this ticket ended up as 'wont fix'?
> make sure Hive uses Antlr runtime version compatible with HPLSQL
> ----------------------------------------------------------------
>
> Key: HIVE-12986
> URL: https://issues.apache.org/jira/browse/HIVE-12986
> Project: Hive
> Issue Type: Improvement
> Reporter: Sergey Shelukhin
> Priority: Blocker
>
> HPLSQL requires Antlr-runtime 4.5, however Hive uses an older version. If
> there are no obstacles to this, Hive should simply be upgraded to the newer
> version
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