join_optimizer Directory Reference

Directory dependency graph for join_optimizer:

Files
file	access_path.cc
file	access_path.h [code]
file	bit_utils.h [code]
file	build_interesting_orders.cc
file	build_interesting_orders.h [code]
file	common_subexpression_elimination.cc
file	common_subexpression_elimination.h [code]
file	compare_access_paths.h [code]
file	cost_constants.h [code]
	Hypergraph optimizer cost constants.
file	cost_model.cc
file	cost_model.h [code]
file	derived_keys.cc
file	derived_keys.h [code]
file	estimate_selectivity.cc
file	estimate_selectivity.h [code]
file	explain_access_path.cc
file	explain_access_path.h [code]
file	finalize_plan.cc
file	finalize_plan.h [code]
file	find_contained_subqueries.h [code]
file	graph_simplification.cc
file	graph_simplification.h [code]
	Heuristic simplification of query graphs to make them execute faster, largely a direct implementation of [Neu09] (any references to just “the paper” will generally be to that).
file	hypergraph.cc
file	hypergraph.h [code]
	Definition of an undirected (join) hypergraph.
file	interesting_orders.cc
file	interesting_orders.h [code]
	Tracks which tuple streams follow which orders, and in particular whether they follow interesting orders.
file	interesting_orders_defs.h [code]
file	join_optimizer.cc
file	join_optimizer.h [code]
	The hypergraph join optimizer takes a query block and decides how to execute it as fast as possible (within a given cost model), based on the idea of expressing the join relations as edges in a hypergraph.
file	make_join_hypergraph.cc
file	make_join_hypergraph.h [code]
file	materialize_path_parameters.h [code]
file	node_map.h [code]
file	online_cycle_finder.cc
file	online_cycle_finder.h [code]
file	optimizer_trace.cc
file	optimizer_trace.h [code]
file	overflow_bitset.cc
file	overflow_bitset.h [code]
	OverflowBitset is a fixed-size (once allocated) bitmap that is optimized for the common case of few elements, yet can support an arbitrary number.
file	print_utils.cc
file	print_utils.h [code]
file	relational_expression.cc
file	relational_expression.h [code]
file	replace_item.cc
file	replace_item.h [code]
file	secondary_engine_costing_flags.h [code]
	For updating an AccessPath's costs by a secondary engine, i.e.
file	subgraph_enumeration.h [code]
	This file implements the DPhyp algorithm for enumerating connected subgraphs of hypergraphs (see hypergraph.h for a hypergraph definition).
file	trivial_receiver.h [code]
file	walk_access_paths.h [code]