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https://issues.apache.org/jira/browse/CASSANDRA-20827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18014065#comment-18014065
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Stefan Miklosovic commented on CASSANDRA-20827:
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Well ... while it looks _strange,_ this is actually the correct way to display
that. We have a column of type {_}text{_}, which accidentally contains a String
which is a valid JSON. And we want to select _JSON representation_ of a value
of a _text_ column. We do not know in advance if the value of a column of type
_text_ is a valid JSON or not. So the current output makes sense, whatever
strange it might look like.
We might contemplate about simplifying it like you suggested if {{value}}
column {_}would be of type JSON{_}. But it is not. It is of type type {{text.}}
> Represent complex settings as JSON on system_views.settings table
> -----------------------------------------------------------------
>
> Key: CASSANDRA-20827
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20827
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Local/Config
> Reporter: Paulo Motta
> Assignee: Marko Tsymbaliuk
> Priority: Normal
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Complex configuration (maps/sets/lists) are represented as
> Collections.toString() on {{system.settings}} virtual table:
> {code:java}
> cqlsh> select * from system_views.settings where name='seed_provider' ;
> name | value
> ------+-------
> (0 rows)
> cqlsh> select * from system_views.settings where
> name='seed_provider.parameters' ;
> name | value
> --------------------------+------------------------
> seed_provider.parameters | {seeds=127.0.0.1:7000}
> {code}
> While this is fine for human consumption, it's not ideal for programmatic
> access, since it requires custom parsing.
> This ticket is to add ability of representing complex types as JSON on
> {{system.settings}} and potentially making it default in trunk, so the above
> would return:
> {code:java}
> cqlsh> select * from system_views.settings where name='seed_provider' ;
> name | value
> ------+-------
> (0 rows)
> cqlsh> select * from system_views.settings where
> name='seed_provider.parameters' ;
> name | value
> --------------------------+------------------------
> seed_provider.parameters | {"seeds": "127.0.0.1:7000"}{code}
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