[
https://issues.apache.org/jira/browse/PHOENIX-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15277494#comment-15277494
]
Thomas D'Silva commented on PHOENIX-2791:
-----------------------------------------
One advantage of being able to set the APPEND_ONLY_SCHEMA on a view in the
CREATE VIEW, is that we can then only do the updateCache call if this property
is set instead of having to do it always to look up the PTable (in
createTable).
> Support append only schema declaration
> --------------------------------------
>
> Key: PHOENIX-2791
> URL: https://issues.apache.org/jira/browse/PHOENIX-2791
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: James Taylor
> Assignee: Thomas D'Silva
> Labels: argus
> Fix For: 4.8.0
>
> Attachments: PHOENIX-2791-v2.patch, PHOENIX-2791.patch
>
>
> If we know in advance that columns will only be added to but never removed
> from a schema, we can prevent the RPC from the client to the server when the
> client already has all columns declared in the CREATE TABLE/VIEW IF NOT
> EXISTS. To enable this, we can add an APPEND_ONLY_SCHEMA boolean flag to
> SYSTEM.CATALOG. Or another potential name would be IMMUTABLE_SCHEMA to match
> IMMUTABLE_ROWS?
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
