m::ClauseInfo Struct Reference

Collects information of a cnf::Clause. More...

#include <QueryGraph.hpp>

Collaboration diagram for m::ClauseInfo:

Public Member Functions
	ClauseInfo (const cnf::Clause &clause)
	Collects correlation information of all cnf::Clauses occurring in the QueryGraph.
bool	is_constant () const
bool	is_selection () const

Data Fields
unsigned	binding_depth = 0
std::unordered_set< ThreadSafePooledString >	data_sources
std::vector< SubqueryInfo >	nested_queries

Detailed Description

Collects information of a cnf::Clause.

Definition at line 31 of file QueryGraph.hpp.

Constructor & Destructor Documentation

ClauseInfo()

ClauseInfo::ClauseInfo

(

const cnf::Clause &

clause

)

Collects correlation information of all cnf::Clauses occurring in the QueryGraph.

QueryCorrelationInfo collects all tables referenced by free variables (i.e. correlated Designators). It further collects all correlated subexpressions occuring in the QueryGraph and dissects them based on whether they occur in equi- or non-equi-predicates.

Definition at line 418 of file QueryGraph.cpp.

References binding_depth, data_sources, nested_queries, and m::visit().

Member Function Documentation

is_constant()

bool m::ClauseInfo::is_constant ( ) const

inline

Definition at line 40 of file QueryGraph.hpp.

References data_sources.

is_selection()

bool m::ClauseInfo::is_selection ( ) const

inline

Definition at line 41 of file QueryGraph.hpp.

References data_sources.

Field Documentation

binding_depth

unsigned m::ClauseInfo::binding_depth = 0

Definition at line 33 of file QueryGraph.hpp.

Referenced by ClauseInfo(), and m::GraphBuilder::process_selection().

data_sources

std::unordered_set<ThreadSafePooledString> m::ClauseInfo::data_sources

Definition at line 35 of file QueryGraph.hpp.

Referenced by ClauseInfo(), is_constant(), and is_selection().

nested_queries

std::vector<SubqueryInfo> m::ClauseInfo::nested_queries

Definition at line 36 of file QueryGraph.hpp.

Referenced by ClauseInfo(), and m::GraphBuilder::process_selection().

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The documentation for this struct was generated from the following files:

• src/IR/QueryGraph.hpp
• src/IR/QueryGraph.cpp