This error message indicates that you are trying to execute a Cassandra query that is missing a required filter on the “run_id” column, but instead has a filter on the “task_field” column.

In Cassandra, the primary key is defined as a combination of one or more columns, and it must be unique for each row in a table. The order of columns in the primary key is important, and when querying a table, you must include filters on all of the columns to the left of the one you want to filter on.

For example, if your table has a primary key defined as (run_id, task_field), you must include a filter on the “run_id” column in your query before you can filter on the “task_field” column.

To resolve this error, you should add the missing filter on the “run_id” column to your query.