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Posted to dev@hive.apache.org by "Harish Butani (JIRA)" <ji...@apache.org> on 2013/12/12 01:06:07 UTC

[jira] [Updated] (HIVE-6013) Supporting Quoted Identifiers in Column Names

     [ https://issues.apache.org/jira/browse/HIVE-6013?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harish Butani updated HIVE-6013:
--------------------------------

    Attachment: QuotedIdentifier.html

> 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
>         Attachments: 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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