Michael Penick created CASSANDRA-10826:
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Summary: frozen<> added to non-frozen UDF/UDA argument types in
schema metadata
Key: CASSANDRA-10826
URL: https://issues.apache.org/jira/browse/CASSANDRA-10826
Project: Cassandra
Issue Type: Bug
Reporter: Michael Penick
The function "avg_state" is created with a non-frozen tuple argument {{state}}
and return type. It should be non-frozen because it's modified by the code in
the body of the UDF.
{code}
CREATE KEYSPACE examples WITH replication = {
'class': 'SimpleStrategy', 'replication_factor': '3' };
CREATE FUNCTION examples.avg_state(state tuple<int, bigint>, val int)
CALLED ON NULL INPUT RETURNS tuple<int, bigint>
LANGUAGE java AS
'if (val != null) {
state.setInt(0, state.getInt(0) + 1);
state.setLong(1, state.getLong(1) + val.intValue());
}
return state;'
{code}
However, the schema metadata has the both the {{state}} argument and the return
type incorrectly defined as {{frozen<>}}:
{code}
cqlsh> SELECT argument_types, return_type FROM system_schema.functions WHERE
keyspace_name = 'examples' AND function_name = 'avg_state';
argument_types | return_type
---------------------------------------+----------------------------
['frozen<tuple<int, bigint>>', 'int'] | frozen<tuple<int, bigint>>
{code}
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