Adam Holmberg created CASSANDRA-8438: ----------------------------------------
Summary: Nested collections not serialized with respect to native protocol version Key: CASSANDRA-8438 URL: https://issues.apache.org/jira/browse/CASSANDRA-8438 Project: Cassandra Issue Type: Bug Components: Core Reporter: Adam Holmberg Priority: Minor It appears that inner collections are not encoding collection element count correctly for protocol version <=2 {code} from cassandra.cluster import Cluster s = Cluster(protocol_version=2).connect() s.execute("CREATE KEYSPACE test WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}") s.execute("CREATE TABLE test.test (k int PRIMARY KEY, v map<int, frozen<list<int>>>) s.execute("INSERT INTO test.test (k, v ) VALUES ( 1, {1: [2,3,4]})") print s.execute("SELECT * FROM test.test") {code} The map returned is encoded as follows: 00:01:00:04:00:00:00:01:00:1c:*00:00:00:03*:*00:00:00:04*:00:00:00:02:*00:00:00:04*:00:00:00:03:*00:00:00:04*:00:00:00:04 It appears that the outer collection encoding is as expected, while the inner list count, and list element sizes are _int_ size, instead of _short_. This does not manifest as a problem in cqlsh because it uses protocol version 3 by default, which accepts this encoding. -- This message was sent by Atlassian JIRA (v6.3.4#6332)