[CASSANDRA-16960] Improve MV TTL error message

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.11.12, 4.0.2, 4.1-alpha1, 4.1
• Component/s: Feature/Materialized Views
• Bug Category: Correctness
• Severity: Normal
• Complexity: Normal
• Discovered By: User Report
• Platform: All
• Since Version: 3.11.0

Source Control Link

https://github.com/apache/cassandra/commit/8f4ae7d825d90a18327c5555386f3cdaf414d836

Test and Documentation Plan

See PR

• Assignee: Berenguer Blasi
• Reporter: Berenguer Blasi

Authors

Berenguer Blasi

Reviewers

Aleksei Zotov, Benjamin Lerer, Brandon Williams

• Created: 16/Sep/21 06:28
• Updated: 27/May/22 19:25
• Resolved: 20/Sep/21 07:52

Description

Old MVs could have been created with a default_time_to_live before the time of CASSANDRA-12868.

A few years forward customers altering that MV for other reasons might get a very confusing message which can benefit from some clarification.

ALTER MATERIALIZED VIEW XXXXX_view WITH gc_grace_seconds = 10800;

Cannot set or alter default_time_to_live for a materialized view. Data in a materialized view always expire at the same time than the corresponding data in the parent table.

Issue Links

• links to: CASSANDRA-16960 PR 3.11
• links to: CASSANDRA-16960 PR 4.0
• links to: CASSANDRA-16960 PR trunk