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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5723) Support System/Session Internal Options And Additional Option System Fixes
Date Sun, 10 Sep 2017 00:34:01 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16160139#comment-16160139

ASF GitHub Bot commented on DRILL-5723:

Github user paul-rogers commented on a diff in the pull request:

    --- Diff: exec/java-exec/src/test/java/org/apache/drill/exec/physical/impl/join/TestMergeJoinAdvanced.java
    @@ -102,10 +103,11 @@ public void testFix2967() throws Exception {
           test("select * from dfs_test.`%s/join/j1` j1 left outer join dfs_test.`%s/join/j2`
j2 on (j1.c_varchar = j2.c_varchar)",
         } finally {
    -      setSessionOption(PlannerSettings.BROADCAST.getOptionName(), String.valueOf(PlannerSettings.BROADCAST.getDefault().bool_val));
    -      setSessionOption(PlannerSettings.HASHJOIN.getOptionName(), String.valueOf(PlannerSettings.HASHJOIN.getDefault().bool_val));
    +      final OperatorFixture.TestOptionSet testOptionSet = new OperatorFixture.TestOptionSet();
    +      setSessionOption(PlannerSettings.BROADCAST.getOptionName(), String.valueOf(testOptionSet.getDefault(PlannerSettings.BROADCAST.getOptionName()).bool_val));
    --- End diff --
    No need to fix now but I wonder:
    * The `ClusterFixture` class has a method of form `setSystemOption(String name, Option
value)` to avoid this kind of silly to/from String overhead. We might want to do the same
for these "legacy" `BaseTestQuery` style tests.
    * But, here we are setting system options to their default value. Why? Isn't that already
the value? If not, wouldn't clearing (deleting) the option value be better?
    * Or, has the test previously set a system option to other than the default value, and
we are undoing that here? Seems it would be better to allow a test to say not to muck with
the defaults. (Hard to do with `BaseTestQuery`, but there is a built-in provision for this
in the `ClusterFixture`.)

> Support System/Session Internal Options And Additional Option System Fixes
> --------------------------------------------------------------------------
>                 Key: DRILL-5723
>                 URL: https://issues.apache.org/jira/browse/DRILL-5723
>             Project: Apache Drill
>          Issue Type: New Feature
>            Reporter: Timothy Farkas
>            Assignee: Timothy Farkas
> This is a feature proposed by [~ben-zvi].
> Currently all the options are accessible by the user in sys.options. We would like to
add internal options which can be altered, but are not visible in the sys.options table. These
internal options could be seen by another alias select * from internal.options. The intention
would be to put new options we weren't comfortable with exposing to the end user in this table.
> After the options and their corresponding features are considered stable they could be
changed to appear in the sys.option table.
> A bunch of other fixes to the Option system have been clubbed into this:
> * OptionValidators no longer hold default values. Default values are contained in the
> * Options have an OptionDefinition. The option definition includes:
>   * A validator
>   * Metadata about the options visibility, required permissions, and the scope in which
it can be set.
> * The Option Manager interface has been cleaned up so that a Type is not required to
be passed in in order to set and delete options

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