Apache Parquet is a columnar file format used by selected catalog and archive services. It is not the source of truth for every workspace record.
The backend includes Parquet-backed product catalogs and selected archives for conversations, memories, audit records, quote history, and document extractions. Coverage depends on the feature and deployed worker configuration. PostgreSQL remains the source of truth for active application records.
Storage and retrieval paths vary by record type. For example, the authenticated conversation API can read active conversations from PostgreSQL and optionally include archived conversations when that archive is available:
This does not mean every agent can search every archive or that all workspace history is retained. Available history depends on the archive type, workspace scope, deployed configuration, and current data.
Parquet stores columns together and can use compression. Actual storage savings and query performance depend on the data and workload; Fortifiers does not publish a fixed compression or latency guarantee here.