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From "Sylvain Lebresne (Commented) (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-4017) Unify migrations
Date Fri, 16 Mar 2012 10:13:40 GMT


Sylvain Lebresne commented on CASSANDRA-4017:

bq. We could do something similar as a one-off for MoveTest

Good idea. I've push 2 new commits to my github branch (
The first one fixes the unit tests using the idea above. The second one is just a small bug
fix of the previous patch. I've checked that with all this, both unit and system tests are
passing (and the cql3 tests I have).
> Unify migrations
> ----------------
>                 Key: CASSANDRA-4017
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.1.0
>            Reporter: Jonathan Ellis
>            Assignee: Sylvain Lebresne
>             Fix For: 1.1.0
> Now that we can send a schema as a RowMutation, there's no need to keep separate add/drop/update
migration classes around.  Let's just send the schema to our counterparts and let them figure
out what changed.  Currently we have "figure out what changed" code to both generate migrations
on the sender, and for application on the target, which adds complexity.

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