Derived_refs_iterator Class Reference

This iterates on those references to a derived table / view / CTE which are materialized. More...

#include <table.h>

Public Member Functions
	Derived_refs_iterator (const Table_ref *start_arg)
TABLE *	get_next ()
void	rewind ()
bool	is_first () const

Private Attributes
const Table_ref *	start
	The reference provided in construction. More...
size_t	ref_idx {0}
	Current index in cte->tmp_tables. More...
bool	m_is_first {true}
	True when at first reference in list. More...

Detailed Description

This iterates on those references to a derived table / view / CTE which are materialized.

If a recursive CTE, this includes recursive references. Upon construction it is passed a non-recursive materialized reference to the derived table (Table_ref*). For a CTE it may return more than one reference; for a derived table or a view, there is only one (as references to a same view are treated as independent objects). References are returned as TABLE*.

Constructor & Destructor Documentation

Derived_refs_iterator()

Derived_refs_iterator::Derived_refs_iterator ( const Table_ref *  start_arg )

inlineexplicit

Member Function Documentation

get_next()

TABLE * Derived_refs_iterator::get_next ( )

inline

is_first()

bool Derived_refs_iterator::is_first ( ) const

inline

Returns

true if the last get_next() returned the first element.

rewind()

void Derived_refs_iterator::rewind ( void  )

inline

Member Data Documentation

m_is_first

bool Derived_refs_iterator::m_is_first {true}

private

True when at first reference in list.

ref_idx

size_t Derived_refs_iterator::ref_idx {0}

private

Current index in cte->tmp_tables.

start

const Table_ref* Derived_refs_iterator::start

private

The reference provided in construction.

---

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

• sql/table.h