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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5578) update trigger schema to use Set instead of CDL text
Date Wed, 29 May 2013 14:37:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669300#comment-13669300
] 

Aleksey Yeschenko commented on CASSANDRA-5578:
----------------------------------------------

What we want here is to make trigger_classes column here in system.schema_columnfamilies to
be of set<text> type instead of text.

Also
- cql3 syntax for (with tirgger_classes = <string>) won't do. Has to be a set (with
trigger_classes = {'class1', 'class2', 'class3'})
- alternatively, drop trigger update support from ALTER TABLE completely and rely on CASSANDRA-5576
instead for trigger creation and removal - we don't want to have two ways to accomplish the
same stuff.
- there is no need to touch/alter cql2 code, it's in life-support mode now

And personally I'd prefer just 'triggers' instead of 'trigger_classes', the latter is redundant,
but ignore this one if you will.


                
> update trigger schema to use Set instead of CDL text
> ----------------------------------------------------
>
>                 Key: CASSANDRA-5578
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5578
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0
>            Reporter: Jonathan Ellis
>            Assignee: Vijay
>             Fix For: 2.0
>
>         Attachments: 0001-CASSANDRA-5578.patch
>
>
> Should probably name column {{trigger_classes}} or just {{triggers}} too.
> (See https://issues.apache.org/jira/browse/CASSANDRA-3919?focusedCommentId=13604931&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13604931
for why adding pseudo-collections will make life harder as we upgrade.)

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