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From "Peter Vary (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17990) Add Thrift and DB storage for Schema Registry objects
Date Fri, 08 Dec 2017 18:33:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16283986#comment-16283986
] 

Peter Vary commented on HIVE-17990:
-----------------------------------

I might have misunderstood the intenet. I thought, that any table created in Hive will be
immediately readable through Schema Registry, and data stored with a Schema would be readable
from Hive, thus requiring all fields filled, and adding data. If this is not the case, then
you are right, this is not a valid issue.

If I understand the diagrams correctly, then in the final version we could access the column
information through the Schema objects only. Currently theoretically every partition can have
a different column set, so when we read the partitions of a table, we transfer these data
for all of the paritions again and again. If we add extra objects to this hierarchy, then
we end up transfering those multiple times too. I might missing here something too, so feel
free to correct me if I wrong.

Missed the tests - they have obvious name, so I do not know why :( Thanks for pointing them
out.

> Add Thrift and DB storage for Schema Registry objects
> -----------------------------------------------------
>
>                 Key: HIVE-17990
>                 URL: https://issues.apache.org/jira/browse/HIVE-17990
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Standalone Metastore
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>         Attachments: Adding-Schema-Registry-to-Metastore.pdf
>
>
> This JIRA tracks changes to Thrift, RawStore, and DB scripts to support objects in the
Schema Registry.



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