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Posted to issues@hive.apache.org by "Shubham (JIRA)" <ji...@apache.org> on 2018/05/18 12:44:00 UTC
[jira] [Commented] (HIVE-6013) Supporting Quoted Identifiers in
Column Names
[ https://issues.apache.org/jira/browse/HIVE-6013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16480603#comment-16480603 ]
Shubham commented on HIVE-6013:
-------------------------------
I am using Hive 0.13.1 and have a parquet database in which the column names are containing unicode characters. Can someone please revert how to address this issue with exact process. Any help would be appreciated
> Supporting Quoted Identifiers in Column Names
> ---------------------------------------------
>
> Key: HIVE-6013
> URL: https://issues.apache.org/jira/browse/HIVE-6013
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Harish Butani
> Assignee: Harish Butani
> Priority: Major
> Fix For: 0.13.0
>
> Attachments: HIVE-6013.1.patch, HIVE-6013.2.patch, HIVE-6013.3.patch, HIVE-6013.4.patch, HIVE-6013.5.patch, HIVE-6013.6.patch, HIVE-6013.7.patch, QuotedIdentifier.html
>
>
> Hive's current behavior on Quoted Identifiers is different from the normal interpretation. Quoted Identifier (using backticks) has a special interpretation for Select expressions(as Regular Expressions). Have documented current behavior and proposed a solution in attached doc.
> Summary of solution is:
> - Introduce 'standard' quoted identifiers for columns only.
> - At the langauage level this is turned on by a flag.
> - At the metadata level we relax the constraint on column names.
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