v.21.9Improvement
Memory Limits Now Account for Bitmap Aggregate Function Memory Consumption
Memory consumed by bitmap aggregate functions now is taken into account for memory limits. This closes #26555. #27252 (alexey-milovidov).
Why it matters
This feature ensures that the memory used by bitmap aggregate functions is tracked and considered against the configured memory limits, preventing out-of-memory issues and improving resource management and stability during query execution.How to use it
No explicit action is required to enable this feature; it is automatically applied as part of the memory management system. Users can control memory limits via existing settings such asmax_memory_usage.