Package com.lucidera.opt

Defines the heuristic optimizer to determine optimal join ordering and to insert semijoins into a query tree.

See:
Description

Class Summary

LoptIterCalcRule	LoptIterCalcRule decorates an IterCalcRel with an error handling tag, according to the LucidDb requirements.
LoptIterCalcRule.CartesianJoinRule	A rule for tagging a calculator on top of a cartesian product join.
LoptIterCalcRule.DefaultRule	A default rule for tagging any calculator
LoptIterCalcRule.HashJoinRule	A rule for tagging a calculator on top of a hash join.
LoptIterCalcRule.JavaUdxRule	A rule for tagging a calculator on top of a Java UDX
LoptIterCalcRule.JdbcQueryRule	A rule for tagging a calculator on top of a JDBC query
LoptIterCalcRule.LcsRowScanRule	A rule for tagging a calculator on top of a column store row scan.
LoptIterCalcRule.NestedLoopJoinRule	A rule for tagging a calculator on top of a nested loop join.
LoptIterCalcRule.TableAccessRule	A rule for tagging a calculator on top of a table scan.
LoptIterCalcRule.TableAppendRule	A rule for tagging a calculator beneath a table modification.
LoptIterCalcRule.TableDeleteRule	A rule for tagging a calculator beneath a table modification.
LoptIterCalcRule.TableMergeRule	A rule for tagging a calculator beneath a table modification.
LoptJoinTree	LoptJoinTree implements a utility class used to store a JoinRel tree and the factors that make up the tree.
LoptMetadataProvider	LoptMetadataProvider supplies relational expression metadata specific to LucidDB.
LoptMetadataQuery	LoptMetadataQuery defines the relational expression metadata queries which are custom to LucidDB's optimizer.
LoptModifyRemovableSelfJoinRule	LoptModifyRemovableSelfJoinRule implements a rule that modifies the inputs into a removable self-join so that they are in a standard format that will be recognized by LoptRemoveSelfJoinRule.
LoptMultiJoin	LoptMultiJoin is a utility class used to keep track of the join factors that make up a MultiJoinRel.
LoptOptimizeJoinRule	LoptOptimizeJoinRule implements the heuristic planner for determining optimal join orderings.
LoptRemoveSelfJoinRule	LoptRemoveSelfJoinRule implements a rule that converts removable self-joins into a scan on the common underlying row scan table.
LoptSemiJoinOptimizer	LoptSemiJoinOptimizer implements the logic for determining the optimal semijoins to be used in processing joins in a query.

Package com.lucidera.opt Description

Defines the heuristic optimizer to determine optimal join ordering and to insert semijoins into a query tree.

Revision	$Id: //open/dev/farrago/src/com/lucidera/opt/package.html#3 $
Copyright	Copyright (C) 2005-2009 LucidEra, Inc. Copyright (C) 2005-2009 The Eigenbase Project
Author	Zelaine Fong