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Subject: [jira] [Commented] (DRILL-1065) Provide a reset command to reset an
 option to its default value
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    [ https://issues.apache.org/jira/browse/DRILL-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14901189#comment-14901189 ] 

ASF GitHub Bot commented on DRILL-1065:
---------------------------------------

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

    https://github.com/apache/drill/pull/159#discussion_r40010391
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/parser/CompoundIdentifierConverter.java ---
    @@ -161,6 +171,7 @@ public SqlNode visitChild(
         rules.put(SqlJoin.class, R(D, D, D, D, D, E));
         rules.put(SqlOrderBy.class, R(D, E, D, D));
         rules.put(SqlDropTable.class, R(D));
    +    rules.put(SqlSetOption.class, R(D, D, D));
    --- End diff --
    
    There is already a comment explaining the rules, and why they are needed. What more?


> Provide a reset command to reset an option to its default value
> ---------------------------------------------------------------
>
>                 Key: DRILL-1065
>                 URL: https://issues.apache.org/jira/browse/DRILL-1065
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Flow
>            Reporter: Aman Sinha
>            Assignee: Sudheesh Katkam
>            Priority: Minor
>             Fix For: 1.2.0
>
>
> Within a session, currently we set configuration options and it would be very useful to have a 'reset' command to reset the value of an option to its default system value: 
>   ALTER SESSION RESET <option name> 
> If we don't want to add a new keyword for RESET, we could potentially overload the SET command and allow the user to set to the 'default' value.



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