Redmine

If you have a custom field for project, which can be used for group by filter (e.g. a list format).

If you try to use this custom fields for group by on time entries this throw an exception:

Query::StatementInvalid: Mysql2::Error: Unknown column 'cf_14.value' in 'field list': SELECT COUNT(DISTINCT `time_entries`.`id`) AS count_

This error occurs on project scope and without project scope.

What I found out, till now:

• this is new with Redmine 4.2
• with earlier Redmine versions, you cannot select a group by field from other entities implementation

I see the following solutions:

• allow group by on custom fields from other entities and this error (it looks like the join to custom field is missing)
• do not offer group by fields of custom fields from other entities

My test environment:

• Redmine 4.2.0
• Ruby 2.7.3
• PostgreSQL 13
• No plugin