[CASSANDRA-16643] ALTER TABLE: mixing counter and non-counter columns in one table

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0-rc2, 4.0
• Component/s: CQL/Semantics
• Bug Category: Correctness
• Severity: Normal
• Complexity: Normal
• Discovered By: User Report
• Platform: All
• Since Version: 4.0-alpha1

Source Control Link

https://github.com/apache/cassandra/commit/a867abf0304439182a7225a751145e4d1d4b07c7

Test and Documentation Plan

new unit test added

• Assignee: Adam Holmberg Assign to me
• Reporter: Artem Chebotko

Authors

Adam Holmberg

Reviewers

Benjamin Lerer, Ekaterina Dimitrova

• Created: 29/Apr/21 21:48
• Updated: 06/May/21 12:52
• Resolved: 06/May/21 12:52

Description

CREATE TABLE does not allow mixing counter and non-counter columns in the same table. However, this can be done with ALTER TABLE:

• ALTER TABLE can add non-counter columns to a table with counter columns;
• ALTER TABLE can add counter columns to a table with non-counter columns.

Tested in cassandra-4.0-rc1 (also in cassandra-4.0-beta2):

CREATE TABLE test1 (
  id UUID,
  my_counter COUNTER,
  PRIMARY KEY ((id))
);

ALTER TABLE test1 ADD my_text TEXT;

UPDATE test1 
SET my_counter = my_counter + 10,
    my_text = 'Test 1' 
WHERE id = 5069cc15-4300-4595-ae77-381c3af5dc5e;

SELECT * FROM test1;

 id                                   | my_counter | my_text
--------------------------------------+------------+---------
 5069cc15-4300-4595-ae77-381c3af5dc5e |         10 |  Test 1

CREATE TABLE test2 (
  id UUID,
  my_text TEXT,
  PRIMARY KEY ((id))
);

ALTER TABLE test2 ADD my_counter COUNTER;

UPDATE test2 
SET my_counter = my_counter + 20,
    my_text = 'Test 2' 
WHERE id = 5069cc15-4300-4595-ae77-381c3af5dc5e;

SELECT * FROM test2;

 id                                   | my_counter | my_text
--------------------------------------+------------+---------
 5069cc15-4300-4595-ae77-381c3af5dc5e |         20 |  Test 2

CREATE TABLE test3 (
  id UUID,
  my_counter COUNTER,
  my_text TEXT,
  PRIMARY KEY ((id))
);

InvalidRequest: Error from server: code=2200 [Invalid query] message="Cannot mix counter and non counter columns in the same table"