CoGaDB::optimizer Namespace Reference

Namespaces
namespace	optimizer_rules
Classes
class	Logical_Optimizer
Enumerations
enum	{ verbose_optimizer = 0 }
Functions
bool	is_simple_selection (query_processing::NodePtr node)
bool	is_complex_selection (query_processing::NodePtr node)
bool	is_join (query_processing::NodePtr node)
bool	is_cross_join (query_processing::NodePtr node)
bool	is_scan (query_processing::NodePtr node)
bool	is_projection (query_processing::NodePtr node)
bool	containsJoinPredicate (const KNF_Selection_Expression &knf)
const std::list< Predicate >	getJoinPredicates (const KNF_Selection_Expression &knf)
void	setLevelsOfTree (query_processing::NodePtr node)
std::list< Attribut >	getListOfAvailableAttributes (query_processing::NodePtr node)

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Enumeration Type Documentation

anonymous enum

Enumerator:

verbose_optimizer

---

Function Documentation

bool CoGaDB::optimizer::containsJoinPredicate

(

const KNF_Selection_Expression &

knf

)

References CoGaDB::KNF_Selection_Expression::disjunctions, and CoGaDB::ValueValuePredicate.

Referenced by CoGaDB::optimizer::optimizer_rules::Eliminate_Cross_Join_Functor::operator()().

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const std::list<Predicate> CoGaDB::optimizer::getJoinPredicates

(

const KNF_Selection_Expression &

knf

)

References CoGaDB::KNF_Selection_Expression::disjunctions, and CoGaDB::ValueValuePredicate.

Referenced by CoGaDB::optimizer::optimizer_rules::Eliminate_Cross_Join_Functor::operator()().

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std::list<Attribut> CoGaDB::optimizer::getListOfAvailableAttributes

(

query_processing::NodePtr

node

)

References CoGaDB::getTablebyName(), is_projection(), is_scan(), and verbose_optimizer.

Referenced by CoGaDB::optimizer::optimizer_rules::Push_Down_Selection_Functor::operator()(), and CoGaDB::optimizer::optimizer_rules::Eliminate_Cross_Join_Functor::operator()().

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bool CoGaDB::optimizer::is_complex_selection

(

query_processing::NodePtr

node

)

References CoGaDB::debug, CoGaDB::quiet, and CoGaDB::verbose.

Referenced by CoGaDB::optimizer::optimizer_rules::Check_Tree_Consistency_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::Push_Down_Selection_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::Decompose_Complex_Selection_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::Compose_Complex_Selections_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::Eliminate_Cross_Join_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::push_down_selection_in_left_subtree_of_child(), CoGaDB::optimizer::optimizer_rules::push_down_selection_in_right_subtree_of_child(), and setLevelsOfTree().

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bool CoGaDB::optimizer::is_cross_join

(

query_processing::NodePtr

node

)

Referenced by CoGaDB::optimizer::optimizer_rules::Eliminate_Cross_Join_Functor::operator()().

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bool CoGaDB::optimizer::is_join

(

query_processing::NodePtr

node

)

bool CoGaDB::optimizer::is_projection

(

query_processing::NodePtr

node

)

Referenced by getListOfAvailableAttributes().

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bool CoGaDB::optimizer::is_scan

(

query_processing::NodePtr

node

)

Referenced by getListOfAvailableAttributes(), CoGaDB::optimizer::optimizer_rules::Push_Down_Selection_Functor::operator()(), and setLevelsOfTree().

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bool CoGaDB::optimizer::is_simple_selection

(

query_processing::NodePtr

node

)

Referenced by CoGaDB::optimizer::optimizer_rules::Push_Down_Selection_Functor::operator()().

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void CoGaDB::optimizer::setLevelsOfTree

(

query_processing::NodePtr

node

)

References is_complex_selection(), is_scan(), and verbose_optimizer.

Referenced by CoGaDB::optimizer::optimizer_rules::Decompose_Complex_Selection_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::Compose_Complex_Selections_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::Eliminate_Cross_Join_Functor::operator()(), CoGaDB::optimizer::optimizer_rules::push_down_selection_in_left_subtree_of_child(), and CoGaDB::optimizer::optimizer_rules::push_down_selection_in_right_subtree_of_child().

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