Jaroslav Kamenik created CASSANDRA-7656:
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Summary: UDT with null/missing attributes
Key: CASSANDRA-7656
URL: https://issues.apache.org/jira/browse/CASSANDRA-7656
Project: Cassandra
Issue Type: Bug
Reporter: Jaroslav Kamenik
I have experienced problem with queriing UDTs stored with some not filled
attributes through new java driver 2.1. I tried to query them in cqlsh too and
it failed. I tried to simulate it again with fresh C* directly in cqlsh and it
seems it has problems in some cases. I have tested it with UDT defined as (a
ascii, b ascii, c ascii, d ascii, e ascii, f ascii, g ascii).
Few observations:
{noformat}
Store {a:'a'} is ok, it returns {a: 'a', b: '', c: '', d: '', e: '', f: '', g:
''}
Store {a:'a', b:'b', c:'c', d:'d', e:'e', f:'f', g:'g'} is ok, returns all
filled.
Store {a:'a', g:'g'} fills a only.
Store {a:'a', b:'b', d:'d', e:'e', f:'f', g:'g'} (missing c) failed on load.
Store {a:'a', f:'f', g:'g'} fills just a.
Store {f:'f',g:'g'} nothing filled
Store {e:'e',f:'f',g:'g'} failed on load.
....
{noformat}
you can reproduce it with:
{noformat}
./cqlsh
Connected to WOC at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 2.1.0-rc4 | CQL spec 3.2.0 | Native protocol v3]
Use HELP for help.
cqlsh> create keyspace testks WITH REPLICATION = { 'class' : 'SimpleStrategy',
'replication_factor' : 1};
cqlsh> use testks;
cqlsh:testks> CREATE TYPE IF NOT EXISTS data (a ascii, b ascii, c ascii, d
ascii, e ascii, f ascii, g ascii);
cqlsh:testks> CREATE TABLE IF NOT EXISTS bbb (a ascii primary key, b data);
cqlsh:testks> insert into testks.bbb (a,b) values ('a', {a:'a'});
cqlsh:testks> select * from bbb;
a | b
---+----------------------------------------------------
a | {a: 'a', b: '', c: '', d: '', e: '', f: '', g: ''}
(1 rows)
cqlsh:testks> insert into testks.bbb (a,b) values ('a', {a:'a', b:'b', c:'c',
d:'d', e:'e', f:'f', g:'g'});
cqlsh:testks> select * from bbb;
a | b
---+----------------------------------------------------------
a | {a: 'a', b: 'b', c: 'c', d: 'd', e: 'e', f: 'f', g: 'g'}
(1 rows)
cqlsh> insert into testks.bbb (a,b) values ('a', {a:'a', g:'g'});
cqlsh> select * from testks.bbb;
a | b
---+----------------------------------------------------
a | {a: 'a', b: '', c: '', d: '', e: '', f: '', g: ''}
(1 rows)
cqlsh:testks> insert into testks.bbb (a,b) values ('a', {a:'a', b:'b', d:'d',
e:'e', f:'f', g:'g'});
cqlsh:testks> select * from bbb;
Traceback (most recent call last):
File "./cqlsh", line 901, in perform_simple_statement
rows = self.session.execute(statement, trace=self.tracing_enabled)
File
"/srv/apache-cassandra-2.1.0-rc4/bin/../lib/cassandra-driver-internal-only-2.1.0b1.post.zip/cassandra-driver-2.1.0b1.post/cassandra/cluster.py",
line 1186, in execute
result = future.result(timeout)
File
"/srv/apache-cassandra-2.1.0-rc4/bin/../lib/cassandra-driver-internal-only-2.1.0b1.post.zip/cassandra-driver-2.1.0b1.post/cassandra/cluster.py",
line 2610, in result
raise self._final_exception
error: unpack requires a string argument of length 4
{noformat}
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