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https://issues.apache.org/jira/browse/CASSANDRA-6071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13773191#comment-13773191
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Sam Tunnicliffe commented on CASSANDRA-6071:
--------------------------------------------
This is caused by an additional ColumnDef being added in the CfDef used to
construct the Pig schema. Where a value_alias is specified for the compact
value column, CqlStorage.getKeysMeta adds a ColumnDef for it. The additional
one is then added in AbstractCassandaStorage.getColumnMeta, so I've added an
additional boolean arg to indicate whether the the value_alias has already been
processed. I've also refactored ACS.getColumnMeta a bit to (hopefully) make the
logic clearer.
> CqlStorage loading compact table adds an extraneous field to the pig schema
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-6071
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6071
> Project: Cassandra
> Issue Type: Bug
> Components: Hadoop
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Priority: Minor
> Attachments: 6071.txt
>
>
> {code}
> CREATE TABLE t (
> key text,
> field1 int,
> field2 int
> PRIMARY KEY (key, field1)
> ) WITH COMPACT STORAGE;
> INSERT INTO t (key,field1,field2) VALUES ('key1',1,2);
> INSERT INTO t (key,field1,field2) VALUES ('key2',1,2);
> INSERT INTO t (key,field1,field2) VALUES ('key3',1,2);
> {code}
> {code}
> grunt> t = LOAD 'cql://ks/t' USING CqlStorage();
> grunt> describe t;
> t: {key: chararray,field1: int,field2: int,value: int}
> dump t;
> (key1,1,2,)
> (key3,1,2,)
> (key2,1,2,)
> {code}
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