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From "ZhaoYang (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-13730) Dropping a table doesn't drop its dropped columns
Date Mon, 31 Jul 2017 02:45:03 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-13730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106746#comment-16106746
] 

ZhaoYang edited comment on CASSANDRA-13730 at 7/31/17 2:45 AM:
---------------------------------------------------------------

| [trunk|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13730-trunk] | [unit|https://circleci.com/gh/jasonstack/cassandra/295]
| |
| [3.11|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13730-3.11] | [unit|https://circleci.com/gh/jasonstack/cassandra/296]
| passed dtest |
| [3.0|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13730-3.0] | [unit|https://circleci.com/gh/jasonstack/cassandra/287]
| |
| [dtest|https://github.com/riptano/cassandra-dtest/commits/CASSANDRA-13730] | 

clear corresponding dropped_columns entries when table is dropped.


was (Author: jasonstack):
| [trunk|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13730-trunk] | [unit|https://circleci.com/gh/jasonstack/cassandra/295]
| |
| [3.11|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13730-3.11] | [unit|https://circleci.com/gh/jasonstack/cassandra/296]
| passed dtest |
| [3.0|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13730-3.0] | [unit|https://circleci.com/gh/jasonstack/cassandra/287]
| |
| [dtest|https://github.com/riptano/cassandra-dtest/commits/CASSANDRA-13730] \ | \ |

clear corresponding dropped_columns entries when table is dropped.

> Dropping a table doesn't drop its dropped columns
> -------------------------------------------------
>
>                 Key: CASSANDRA-13730
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13730
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Duarte Nunes
>            Assignee: ZhaoYang
>             Fix For: 3.0.x, 3.11.x
>
>
> I'm not sure if this is intended or not, but currently a table's dropped columns are
not dropped when the table itself is dropped:
> {noformat}
> cqlsh> create keyspace ks WITH replication={ 'class' : 'SimpleStrategy', 'replication_factor'
: 1 } ;
> cqlsh> use ks;
> cqlsh:ks> create table  test (pk text primary key, c1 int);
> cqlsh:ks> alter table test drop c1;
> cqlsh:ks> drop table test;
> cqlsh:ks> select * from system_schema.dropped_columns where keyspace_name = 'ks' and
table_name = 'test';
>  keyspace_name | table_name | column_name | dropped_time                    | kind  
 | type
> ---------------+------------+-------------+---------------------------------+---------+------
>             ks |       test |          c1 | 2017-07-25 17:53:47.651000+0000 | regular
|  int
> (1 rows)
> {noformat}
> This can have surprising consequences when creating another table with the same name.



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