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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5489) Fix 2.0 key and column aliases serialization and cqlsh DESC SCHEMA
Date Wed, 01 May 2013 12:48:16 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646541#comment-13646541
] 

Aleksey Yeschenko commented on CASSANDRA-5489:
----------------------------------------------

Yep.
                
> Fix 2.0 key and column aliases serialization and cqlsh DESC SCHEMA
> ------------------------------------------------------------------
>
>                 Key: CASSANDRA-5489
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5489
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core, Tools
>    Affects Versions: 2.0
>            Reporter: Aleksey Yeschenko
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 2.0
>
>         Attachments: 5489-1.2.txt, 5489.txt
>
>
> CASSANDRA-5125 made a slight change to how key_aliases and column_aliases are serialized
in schema. Prior to that we never kept nulls in the the json pseudo-lists. This does break
cqlsh and probably breaks 1.2 nodes receiving such migrations as well. The patch reverts this
behavior and also slightly modifies cqlsh itself to ignore non-regular columns from system.schema_columns
table.
> This patch breaks nothing, since 2.0 already handles 1.2 non-null padded alias lists.

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