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https://issues.apache.org/jira/browse/CASSANDRA-13369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Nachiket Patil updated CASSANDRA-13369:
---------------------------------------
Description:
If through CQL, multiple values are specified for a key, grammar parses the map
and last value for the key wins. This behavior is bad.
e.g.
```
$ CREATE KEYSPACE "Excalibur" WITH REPLICATION = {'class' :
'NetworkTopologyStrategy', 'dc1' : 2, 'dc1' : 5};
```
Parsing this statement, 'dc1' gets RF = 5. This can be catastrophic, may even
result in loss of data. This behavior should not be silent or not be allowed at
all.
was:
If through CQL, multiple values are specified for a key, grammar parses the map
and last value for the key wins. This behavior is bad.
e.g.
$ CREATE KEYSPACE "Excalibur" WITH REPLICATION = {'class' :
'NetworkTopologyStrategy', 'dc1' : 2, 'dc1' : 5};
Parsing this statement, 'dc1' gets RF = 5. This can be catastrophic, may even
result in loss of data. This behavior should not be silent or not be allowed at
all.
> If there are multiple values for a key, CQL grammar choses last value. This
> should not be silent or should not be allowed.
> --------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-13369
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13369
> Project: Cassandra
> Issue Type: Bug
> Components: CQL
> Reporter: Nachiket Patil
> Assignee: Nachiket Patil
> Priority: Minor
> Fix For: 4.0
>
>
> If through CQL, multiple values are specified for a key, grammar parses the
> map and last value for the key wins. This behavior is bad.
> e.g.
> ```
> $ CREATE KEYSPACE "Excalibur" WITH REPLICATION = {'class' :
> 'NetworkTopologyStrategy', 'dc1' : 2, 'dc1' : 5};
> ```
> Parsing this statement, 'dc1' gets RF = 5. This can be catastrophic, may even
> result in loss of data. This behavior should not be silent or not be allowed
> at all.
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