A BaseTable is a DataSource that is materialized and stored persistently by the database system. More...

#include <QueryGraph.hpp>

Inheritance diagram for m::BaseTable:

Collaboration diagram for m::BaseTable:

Public Member Functions
const Table &	table () const
	Returns a reference to the `Table` providing the tuples.

ThreadSafePooledOptionalString	name () const override
	Returns the name of this `DataSource`.

bool	is_correlated () const override
	`BaseTable` is never correlated.

std::size_t	id () const
	Returns the id of this `DataSource`.

const ThreadSafePooledOptionalString &	alias () const
	Returns the alias of this `DataSource`.

const cnf::CNF &	filter () const
	Returns the filter of this `DataSource`.

void	update_filter (cnf::CNF filter)
	Adds `filter` to the current filter of this `DataSource` by logical conjunction.

void	add_join (Join &join)
	Adds `join` to the set of `Join`s of this `DataSource`.

const auto &	joins () const
	Returns a reference to the `Join`s using this `DataSource`.

bool	operator== (const DataSource &other) const

bool	operator!= (const DataSource &other) const

Private Member Functions
	BaseTable (std::size_t id, ThreadSafePooledOptionalString alias, const Table &table)
	‍list of designators expanded from `GetPrimaryKey::compute()` or `GetAttributes::compute()`

void	remove_join (Join &join)

Private Attributes
const Table &	table_
	the table providing the tuples

cnf::CNF	filter_
	filter condition on this data source

std::vector< std::reference_wrapper< Join > >	joins_
	joins with this data source

ThreadSafePooledOptionalString	alias_
	alias of this data source, may not have a value if this data source has no alias

std::size_t	id_
	unique identifier of this data source within its query graph

bool	decorrelated_ = true
	indicates whether this source is already decorrelated

Friends
struct	QueryGraph

struct	GetPrimaryKey

Detailed Description

A BaseTable is a DataSource that is materialized and stored persistently by the database system.

Definition at line 88 of file QueryGraph.hpp.

Constructor & Destructor Documentation

◆ BaseTable()

m::BaseTable::BaseTable	(	std::size_t	id,
		ThreadSafePooledOptionalString	alias,
		const Table &	table
	)

inlineprivate

‍list of designators expanded from GetPrimaryKey::compute() or GetAttributes::compute()

Definition at line 99 of file QueryGraph.hpp.

Member Function Documentation

◆ add_join()

void m::DataSource::add_join ( Join & join )

inlineinherited

Adds join to the set of Joins of this DataSource.

Definition at line 67 of file QueryGraph.hpp.

◆ alias()

const ThreadSafePooledOptionalString & m::DataSource::alias ( ) const

inlineinherited

Returns the alias of this DataSource.

May not have a value.

Definition at line 58 of file QueryGraph.hpp.

◆ filter()

const cnf::CNF & m::DataSource::filter ( ) const

inlineinherited

Returns the filter of this DataSource.

May be empty.

Definition at line 63 of file QueryGraph.hpp.

◆ id()

std::size_t m::DataSource::id ( ) const

inlineinherited

Returns the id of this DataSource.

Definition at line 56 of file QueryGraph.hpp.

◆ is_correlated()

bool m::BaseTable::is_correlated ( ) const

inlineoverridevirtual

BaseTable is never correlated.

Always returns false.

Implements m::DataSource.

Definition at line 110 of file QueryGraph.hpp.

◆ joins()

const auto & m::DataSource::joins ( ) const

inlineinherited

Returns a reference to the Joins using this DataSource.

Definition at line 69 of file QueryGraph.hpp.

◆ name()

ThreadSafePooledOptionalString m::BaseTable::name ( ) const

inlineoverridevirtual

Returns the name of this DataSource.

Either the same as alias(), if an alias is given, otherwise the name of the referenced Table. Returned value might be empty for anonymous nested queries (e.g. in a WHERE clause).

Implements m::DataSource.

Definition at line 107 of file QueryGraph.hpp.

References m::Table::name().

◆ operator!=()

bool m::DataSource::operator!= ( const DataSource & other ) const

inlineinherited

Definition at line 84 of file QueryGraph.hpp.

◆ operator==()

bool m::DataSource::operator== ( const DataSource & other ) const

inlineinherited

Definition at line 83 of file QueryGraph.hpp.

References m::DataSource::id_.

◆ remove_join()

void m::DataSource::remove_join ( Join & join )

inlineprivateinherited

Definition at line 75 of file QueryGraph.hpp.

◆ table()

const Table & m::BaseTable::table ( ) const

inline

Returns a reference to the Table providing the tuples.

Definition at line 105 of file QueryGraph.hpp.

◆ update_filter()

void m::DataSource::update_filter ( cnf::CNF filter )

inlineinherited

Adds filter to the current filter of this DataSource by logical conjunction.

Definition at line 65 of file QueryGraph.hpp.

References and().

Referenced by m::QueryGraph::add_custom_filter().

Friends And Related Function Documentation

◆ GetPrimaryKey

friend struct GetPrimaryKey

friend

Definition at line 91 of file QueryGraph.hpp.

◆ QueryGraph

friend struct QueryGraph

friend

Definition at line 90 of file QueryGraph.hpp.

Field Documentation

◆ alias_

ThreadSafePooledOptionalString m::DataSource::alias_

privateinherited

alias of this data source, may not have a value if this data source has no alias

Definition at line 41 of file QueryGraph.hpp.

◆ decorrelated_

bool m::DataSource::decorrelated_ = true

privateinherited

indicates whether this source is already decorrelated

Definition at line 44 of file QueryGraph.hpp.

◆ filter_

cnf::CNF m::DataSource::filter_

privateinherited

filter condition on this data source

Definition at line 39 of file QueryGraph.hpp.

◆ id_

std::size_t m::DataSource::id_

privateinherited

unique identifier of this data source within its query graph

Definition at line 42 of file QueryGraph.hpp.

Referenced by m::DataSource::operator==().

◆ joins_

std::vector<std::reference_wrapper<Join> > m::DataSource::joins_

privateinherited

joins with this data source

Definition at line 40 of file QueryGraph.hpp.

◆ table_

const Table& m::BaseTable::table_

private

the table providing the tuples

Definition at line 94 of file QueryGraph.hpp.

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

include/mutable/IR/QueryGraph.hpp

Public Member Functions

Private Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ BaseTable()

Member Function Documentation

◆ add_join()

◆ alias()

◆ filter()

◆ id()

◆ is_correlated()

◆ joins()

◆ name()

◆ operator!=()

◆ operator==()

◆ remove_join()

◆ table()

◆ update_filter()

Friends And Related Function Documentation

◆ GetPrimaryKey

◆ QueryGraph

Field Documentation

◆ alias_

◆ decorrelated_

◆ filter_

◆ id_

◆ joins_

◆ table_