Module bushy_tree_join_ordering_rule

Structs

• BushyTreeJoinOrderingRule
  Reorders a multi join into a bushy tree shape join tree with a minimal height.

Constants

• BUSHY_TREE_JOIN_LOWER_LIMIT 🔒
  To construct a bushy tree with a height lower than the left deep tree, we need tt least four inputs.
• BUSHY_TREE_JOIN_UPPER_LIMIT 🔒
  If inputs of a multi join reach the limit, fallback to a left deep tree, because the search space could be too large to search.