Github user arina-ielchiieva commented on the issue:
https://github.com/apache/drill/pull/655
Answering to all comments in one:
1. `${option.getValue()}` is not sufficient since method returns Object and
freemarker does not know how to cast it.
2. `?c` only works with boolean and numbers, since options can be string,
it not sufficient
3. `?string` works with most of the types but it's true for boolean seems
to be deprecated
4. to set null value to option is not possible (handled in
SetOptionHandler.class) but option.getValue() may return null according to the
code.
Paul's idea to prepare options to display on Java side seems to be the most
reasonable.
So I have updated the pull request, added new method in
ProfileWrapper.class with transforms `OptionValueList` into `Map<String,
String>`. If option value is null, it will be displayed as word 'null'.
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