collect_hash_* session settings - ClickHouse Documentation

These settings are available in system.settings and are autogenerated from source.

collect_hash_table_stats_during_aggregation

Enable collecting hash table statistics to optimize memory allocatio

collect_hash_table_stats_during_joins

Enable collecting hash table statistics to optimize memory allocatio

Last modified on July 23, 2026

compatibility_*ClickHouse session settings in the compatibility_* generated group.