[jira] [Commented] (DRILL-3510) Add ANSI_QUOTES option so that Drill's SQL Parser will recognize ANSI_SQL identifiers

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-3510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15890079#comment-15890079 ] 

ASF GitHub Bot commented on DRILL-3510:
---------------------------------------

Github user vdiravka commented on a diff in the pull request:

    https://github.com/apache/drill/pull/520#discussion_r99824747
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/rpc/user/UserSession.java ---
    @@ -59,9 +62,11 @@
       public static final String USER = "user";
       public static final String PASSWORD = "password";
       public static final String IMPERSONATION_TARGET = "impersonation_target";
    +  public static final String QUOTING_IDENTIFIERS_CHARACTER = "quoting_identifiers_character";
    --- End diff --
    
    Agree. 
    I suppose `QUOTING` is not enough. I think `QUOTING_IDENTIFIERS` should be good.


> Add ANSI_QUOTES option so that Drill's SQL Parser will recognize ANSI_SQL identifiers 
> --------------------------------------------------------------------------------------
>
>                 Key: DRILL-3510
>                 URL: https://issues.apache.org/jira/browse/DRILL-3510
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: SQL Parser
>            Reporter: Jinfeng Ni
>            Assignee: Vitalii Diravka
>              Labels: doc-impacting
>             Fix For: 1.10.0
>
>         Attachments: DRILL-3510.patch, DRILL-3510.patch
>
>
> Currently Drill's SQL parser uses backtick as identifier quotes, the same as what MySQL does. However, this is different from ANSI SQL specification, where double quote is used as identifier quotes.  
> MySQL has an option "ANSI_QUOTES", which could be switched on/off by user. Drill should follow the same way, so that Drill users do not have to rewrite their existing queries, if their queries use double quotes. 
> {code}
> SET sql_mode='ANSI_QUOTES';
> {code}
>    



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