[jira] [Assigned] (CASSANDRA-3714) Show Schema; inserts an extra comma in column_metadata

["Jonathan Ellis (Assigned) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-3714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis reassigned CASSANDRA-3714:
-----------------------------------------

    Assignee: Yuki Morishita
    
> Show Schema; inserts an extra comma in column_metadata
> ------------------------------------------------------
>
>                 Key: CASSANDRA-3714
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3714
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Joaquin Casares
>            Assignee: Yuki Morishita
>             Fix For: 1.0.5
>
>
> create column family inode
>   with column_type = 'Standard'
>   and comparator = 'DynamicCompositeType(t=>org.apache.cassandra.db.marshal.TimeUUIDType,s=>org.apache.cassandra.db.marshal.UTF8Type,b=>org.apache.cassandra.db.marshal.BytesType)'
>   and default_validation_class = 'BytesType'
>   and key_validation_class = 'BytesType'
>   and rows_cached = 0.0
>   and row_cache_save_period = 0
>   and row_cache_keys_to_save = 2147483647
>   and keys_cached = 1000000.0
>   and key_cache_save_period = 14400
>   and read_repair_chance = 1.0
>   and gc_grace = 60
>   and min_compaction_threshold = 4
>   and max_compaction_threshold = 32
>   and replicate_on_write = true
>   and row_cache_provider = 'ConcurrentLinkedHashCacheProvider'
>   and compaction_strategy = 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
>   and comment = 'Stores file meta data'
>   and column_metadata = [
>     {column_name : 'b@70617468',
>     validation_class : BytesType,
>     index_name : 'path',
>     index_type : 0,
> },
>     {column_name : 'b@73656e74696e656c',
>     validation_class : BytesType,
>     index_name : 'sentinel',
>     index_type : 0,
> },
>     {column_name : 'b@706172656e745f70617468',
>     validation_class : BytesType,
>     index_name : 'parent_path',
>     index_type : 0,
> }];
> That's that was outputted when I ran show schema. When I tried it on a new cluster, it failed since the commas after 'index_type: 0' were present.
> Proposed fixes:
> 1. Allow trailing commas
> 2. Do not output trailing commas

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