1.3. What’s New in 0.179-t.0.1

The following is notable functionality added in 0.179-t.0.1

Cost-Based Optimizer

  • Cost-based join reordering
  • Determine join distribution type based on statistics
  • Show estimated statistics in EXPLAIN

Spill to Disk

  • Spill-to-disk for inner joins
  • Improved spill-to-disk for aggregations

Performance

  • Distributed merge sort
  • Improve performance for selective filters
  • Numerous other performance improvements, bug fixes, and other features

Release Notes

Also see release notes Release 0.179-t