[ 
https://issues.apache.org/jira/browse/CASSANDRA-8005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154306#comment-14154306
 ] 

Jeremiah Jordan commented on CASSANDRA-8005:
--------------------------------------------

But I don't want to do something machine readable with it. I want to return it 
back to the user that asked "how do I make this table again".  With this server 
side we are close to drivers not needing to parse schema tables, and able to 
get all the info they need from native protocol meta data about a query.  To me 
this is a good goal to be shooting for.

> Server-side DESCRIBE
> --------------------
>
>                 Key: CASSANDRA-8005
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8005
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API
>            Reporter: Tyler Hobbs
>            Priority: Minor
>              Labels: cql3
>             Fix For: 3.0
>
>
> The various {{DESCRIBE}} commands are currently implemented by cqlsh, and 
> nearly identical implementations exist in many drivers.  There are several 
> motivations for making {{DESCRIBE}} part of the CQL language:
> * Eliminate the (fairly complex) duplicate implementations across drivers and 
> cqlsh
> * Get closer to allowing drivers to not have to fetch the schema tables. 
> (Minor changes to prepared statements are also needed.)
> * Have instantaneous support for new schema features in cqlsh.  (You 
> currently have to update the bundled python driver.)
> * Support writing out schemas where it makes sense.  One good example of this 
> is backups.  You need to restore the schema before restoring data in the case 
> of total loss, so it makes sense to write out the schema alongside snapshots.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to