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https://issues.apache.org/jira/browse/KYLIN-1919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15564915#comment-15564915
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Shaofeng SHI commented on KYLIN-1919:
-------------------------------------
By default use "_" as the separator of the structed JSON properties; For
example, the message looks like:
{
"id" : 12334,
"location" : {
"city": "shanghai",
"country" : "china"
}
}
in defining it as a table, the table will be like: id, location_city,
location_country;
If there is a root property called "location_city" in the JSON message, then
will use it directly; otherwise, will seek "location" and then parse "city".
> Support Embedded Structure when Parsing Streaming Message
> ---------------------------------------------------------
>
> Key: KYLIN-1919
> URL: https://issues.apache.org/jira/browse/KYLIN-1919
> Project: Kylin
> Issue Type: New Feature
> Components: streaming
> Affects Versions: v1.5.2
> Reporter: Billy(Yiming) Liu
> Assignee: Shaofeng SHI
> Fix For: v1.6.0
>
>
> According to the doc:
> http://kylin.apache.org/docs15/tutorial/cube_streaming.html, the Kafka
> incoming message should be in flatten structure. But it's too limit for JSON
> message. The request feature would support embedded structure raw messages,
> and convert them into flatten table structure for further cube building and
> SQL query.
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