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https://issues.apache.org/jira/browse/CASSANDRA-15345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Konstantin updated CASSANDRA-15345:
-----------------------------------
Description:
The below example conditional update is wrongly evaluated to True and applied
even though clustering key 'k1' is not present in the table:
```
{{CREATE KEYSPACE test_keyspace WITH replication = \{'class': 'SimpleStrategy',
'replication_factor': 1};}}
{{ CREATE TABLE test_table (id int, k text, version int static, v text, PRIMARY
KEY (id, k));}}
{{ INSERT INTO test_table(id, version) VALUES (0, 0);}}
{{ SELECT * FROM test_table;}}{{id | k | version | v}}
{{ ----++---------------+------}}
{{ 0 | null | 0 | null}}{{(1 rows)}}
{{ SELECT * FROM test_table WHERE id=0 AND k='k1';}}{{id | k | version | v}}
{{ ----++------------+---}}{{(0 rows)}}
{{ UPDATE test_table SET v='foo', version=1 WHERE id=0 AND k='k1' IF version =
0;}}{{[applied]}}
{{ -----------}}
{{ True}}{{SELECT * FROM test_table;}}{{id | k | version | v}}
{{ ----++-------------+-----}}
{{ 0 | k1 | 1 | foo}}{{(1 rows)}}
{{ DROP TABLE test_table;}}
{{ DROP KEYSPACE test_keyspace;}}{{```}}
was:
The below example conditional update is wrongly evaluated to True and applied
even though clustering key 'k1' is not present in the table:
```
CREATE KEYSPACE test_keyspace WITH replication = \{'class': 'SimpleStrategy',
'replication_factor': 1};
CREATE TABLE test_table (id int, k text, version int static, v text, PRIMARY
KEY (id, k));
INSERT INTO test_table(id, version) VALUES (0, 0);
SELECT * FROM test_table;
id | k | version | v
----+------+---------+------
0 | null | 0 | null
(1 rows)
SELECT * FROM test_table WHERE id=0 AND k='k1';
id | k | version | v
----+---+---------+---
(0 rows)
UPDATE test_table SET v='foo', version=1 WHERE id=0 AND k='k1' IF version = 0;
[applied]
-----------
True
SELECT * FROM test_table;
id | k | version | v
----+----+---------+-----
0 | k1 | 1 | foo
(1 rows)
DROP TABLE test_table;
DROP KEYSPACE test_keyspace;
```
> Incorrect result on conditional UPDATE with static and regular conditions
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-15345
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15345
> Project: Cassandra
> Issue Type: Bug
> Components: CQL/Semantics
> Reporter: Konstantin
> Priority: Normal
>
> The below example conditional update is wrongly evaluated to True and applied
> even though clustering key 'k1' is not present in the table:
> ```
> {{CREATE KEYSPACE test_keyspace WITH replication = \{'class':
> 'SimpleStrategy', 'replication_factor': 1};}}
> {{ CREATE TABLE test_table (id int, k text, version int static, v text,
> PRIMARY KEY (id, k));}}
> {{ INSERT INTO test_table(id, version) VALUES (0, 0);}}
> {{ SELECT * FROM test_table;}}{{id | k | version | v}}
> {{ ----++---------------+------}}
> {{ 0 | null | 0 | null}}{{(1 rows)}}
> {{ SELECT * FROM test_table WHERE id=0 AND k='k1';}}{{id | k | version | v}}
> {{ ----++------------+---}}{{(0 rows)}}
> {{ UPDATE test_table SET v='foo', version=1 WHERE id=0 AND k='k1' IF version
> = 0;}}{{[applied]}}
> {{ -----------}}
> {{ True}}{{SELECT * FROM test_table;}}{{id | k | version | v}}
> {{ ----++-------------+-----}}
> {{ 0 | k1 | 1 | foo}}{{(1 rows)}}
> {{ DROP TABLE test_table;}}
> {{ DROP KEYSPACE test_keyspace;}}{{```}}
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