We have several tables that have a cascade delete option focused around when the report period is removed from the database. However, during our expired data celery task with this change:

• https://github.com/project-koku/koku/pull/2950/files#diff-05fc823ec8b4f0803d033cd6eae02bab829524bd45285989770290e2e0703900L61-L73

We stopped deleting the old report period ids from the database. Which has caused us to collect up to 2 years worth of data in tables like reporting_ocpusagepodlabel_summary. Causing performance issues during data processing.