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https://issues.apache.org/jira/browse/CASSANDRA-11513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15229867#comment-15229867
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Sylvain Lebresne commented on CASSANDRA-11513:
----------------------------------------------
bq. It seems to me that AbstractSSTableIterator doesn't correctly handle the
case of empty slices in general
Agreed. Do you want to give a shot at a patch?
> Result set is not unique on primary key (cql)
> ----------------------------------------------
>
> Key: CASSANDRA-11513
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11513
> Project: Cassandra
> Issue Type: Bug
> Reporter: Tianshi Wang
>
> [cqlsh 5.0.1 | Cassandra 3.4 | CQL spec 3.4.0 | Native protocol v4]
> Run followings,
> {code}
> drop table if exists test0;
> CREATE TABLE test0 (
> pk int,
> a int,
> b text,
> s text static,
> PRIMARY KEY (pk, a)
> );
> insert into test0 (pk,a,b,s) values (0,1,'b1','hello b1');
> insert into test0 (pk,a,b,s) values (0,2,'b2','hello b2');
> insert into test0 (pk,a,b,s) values (0,3,'b3','hello b3');
> create index on test0 (b);
> insert into test0 (pk,a,b,s) values (0,2,'b2 again','b2 again');
> {code}
> Now select one record based on primary key, we got all three records.
> {code}
> cqlsh:ops> select * from test0 where pk=0 and a=2;
> pk | a | s | b
> ----+---+----------+----------
> 0 | 1 | b2 again | b1
> 0 | 2 | b2 again | b2 again
> 0 | 3 | b2 again | b3
> {code}
> {code}
> cqlsh:ops> desc test0;
> CREATE TABLE ops.test0 (
> pk int,
> a int,
> b text,
> s text static,
> PRIMARY KEY (pk, a)
> ) WITH CLUSTERING ORDER BY (a ASC)
> AND bloom_filter_fp_chance = 0.01
> AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
> AND comment = ''
> AND compaction = {'class':
> 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy',
> 'max_threshold': '32', 'min_threshold': '4'}
> AND compression = {'chunk_length_in_kb': '64', 'class':
> 'org.apache.cassandra.io.compress.LZ4Compressor'}
> AND crc_check_chance = 1.0
> AND dclocal_read_repair_chance = 0.1
> AND default_time_to_live = 0
> AND gc_grace_seconds = 864000
> AND max_index_interval = 2048
> AND memtable_flush_period_in_ms = 0
> AND min_index_interval = 128
> AND read_repair_chance = 0.0
> AND speculative_retry = '99PERCENTILE';
> CREATE INDEX test0_b_idx ON ops.test0 (b);
> {code}
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