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Aleksey Yeschenko commented on CASSANDRA-5017:
----------------------------------------------
CASSANDRA-5018 in indeed no longer an issue. Also I do get the right columns in
my metadata now:
{ok, R} = seestar_client:prepare(Pid, "update test.collections set amap[?] = ?
WHERE id = ?").
{ok,{prepared,<<21,71,235,65,143,167,200,103,53,75,239,64,
92,235,243,145>>,
[{column,<<"test">>,<<"collections">>,<<"key(amap)">>,int},
{column,<<"test">>,<<"collections">>,<<"value(amap)">>,
varchar},
{column,<<"test">>,<<"collections">>,<<"id">>,int}]}}
However, when I try to execute the query (or just run it in cqlsh), I get "Bad
Request: List operations are only supported on List typed columns, but
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.Int32Type,org.apache.cassandra.db.marshal.UTF8Type)
given" error.
> Preparing UPDATE queries with collections returns suboptimal metadata
> ---------------------------------------------------------------------
>
> Key: CASSANDRA-5017
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5017
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.2.0 beta 2
> Reporter: Aleksey Yeschenko
> Assignee: Sylvain Lebresne
> Priority: Minor
> Fix For: 1.2.0 rc1
>
> Attachments: 0001-Return-correct-metadata-when-preparing-map.txt,
> 0002-Fix-prepared-list-index-and-using-integer-for-map-keys.txt,
> 0003-Fix-handling-of-prepared-marker-for-deletes.txt
>
>
> CQL3, binary protocol.
> collections (id int primary key, amap map<int, varchar>);
> preparing "UPDATE test.collections SET amap[?] = ? WHERE id = ?" returns the
> following metadata:
> [{column,<<"test">>,<<"collections">>,<<"amap">>,
> {map,int,varchar}},
> {column,<<"test">>,<<"collections">>,<<"amap">>,
> {map,int,varchar}},
> {column,<<"test">>,<<"collections">>,<<"id">>,int}]
> Ideally it should return [int, varchar, int] types. Less ideally [{map, int,
> varchar}, int] and expect an encoded map with a single key-value pair. But
> certainly not what it currently returns.
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