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From "Carl Yeksigian (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9921) Combine MV schema definition with MV table definition
Date Mon, 10 Aug 2015 15:31:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14680258#comment-14680258
] 

Carl Yeksigian commented on CASSANDRA-9921:
-------------------------------------------

The idea of this is to remove the entries for MV from the Tables schema, and move necessary
properties to the MV schema instead. Both the MV and the Tables would live at the Keyspace
level, and MVManager would be moved from the CFS to the Keyspace.

- Copy properties from the {{Schema.tables}} table to the {{Schema.materialized_views}} table,
remove {{MaterializedView}} from {{CFMetaData.Flag}}; this can be easily done using the changes
to factor out {{TableParams}} by [~iamaleksey]
- Remove the columns from the schema table; we can reference the {{Schema.columns}} table
instead; add an {{includeAll}} flag to indicate whether all columns are included or not
- Change the base table reference to be the ID instead of name, to prevent referencing the
wrong table (should  address [~benedict]'s [comment|https://issues.apache.org/jira/browse/CASSANDRA-6477?focusedCommentId=14662980&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14662980])
- Move {{MVManager}} to {{Keyspace}} instead of CFS
- When a Keyspace is instantiated, MV's should be last to be created, so they can resolve
the Tables they reference

> Combine MV schema definition with MV table definition
> -----------------------------------------------------
>
>                 Key: CASSANDRA-9921
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9921
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Carl Yeksigian
>            Assignee: Carl Yeksigian
>              Labels: client-impacting, materializedviews
>             Fix For: 3.0 beta 1
>
>
> Prevent MV from reusing {{system_schema.tables}} and instead move those properties into
the {{system_schema.materializedviews}} table to keep them separate entities.



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