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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-3510) Add ANSI_QUOTES option so that Drill's SQL Parser will recognize ANSI_SQL identifiers
Date Tue, 07 Feb 2017 05:47:42 GMT

    [ https://issues.apache.org/jira/browse/DRILL-3510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855375#comment-15855375
] 

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

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

    https://github.com/apache/drill/pull/520#discussion_r99747062
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/server/options/TypeValidators.java
---
    @@ -204,10 +204,11 @@ public void validate(final OptionValue v, final OptionManager manager)
{
        * Validator that checks if the given value is included in a list of acceptable values.
Case insensitive.
        */
       public static class EnumeratedStringValidator extends StringValidator {
    -    private final Set<String> valuesSet = new HashSet<>();
    +    private final Set<String> valuesSet = new LinkedHashSet<>();
    --- End diff --
    
    is ordering important?


> 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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