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https://issues.apache.org/jira/browse/CASSANDRA-1773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12936022#action_12936022
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Jonathan Ellis commented on CASSANDRA-1773:
-------------------------------------------
This is making negative progress. The UUID error from describe after
{code}
create column family foo with column_type = 'Super' and comparator =
'TimeUUIDType' and subcomparator = 'UTF8Type' and
column_metadata=[{column_name:col1, validation_class:UTF8Type},
{column_name:col2, validation_class:UTF8Type}];
{code}
was correct, and now we don't get that error.
But the correct place to do that validation is on the server, I will make a
patch for that.
> Prevent creation of column_metadata inconsistent with comparator
> ----------------------------------------------------------------
>
> Key: CASSANDRA-1773
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1773
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 0.7.0 rc 1
> Reporter: Jonathan Ellis
> Assignee: Pavel Yaskevich
> Priority: Minor
> Fix For: 0.7.0
>
> Attachments: CASSANDRA-1773.patch
>
>
> {code}
> create keyspace clitest with replication_factor = 1 and placement_strategy =
> 'org.apache.cassandra.locator.SimpleStrategy';
> use clitest;
> create column family bar with column_type = 'Super' and comparator =
> 'TimeUUIDType' and subcomparator = 'UTF8Type';
> create column family foo with column_type = 'Super' and comparator =
> 'TimeUUIDType' and subcomparator = 'UTF8Type' and
> column_metadata=[{column_name:col1, validation_class:UTF8Type},
> {column_name:col2, validation_class:UTF8Type}];
> {code}
> then, "describe keyspace clitest" will give "UUIDs must be exactly 16 bytes"
> because it tries to run "col1" through the comparator getString.
> We should check that column names in metadata match the comparator when
> updating metadata, and also check that the column names are sane if we update
> the comparator itself.
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