On 2020-Mar-18, Jeff Davis wrote: > Disk-based Hash Aggregation. > > While performing hash aggregation, track memory usage when adding new > groups to a hash table. If the memory usage exceeds work_mem, enter > "spill mode".
Kudos!! -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
