AQP::Equal_set_iterator Class Reference

#include <abstract_query_plan.h>

Inheritance diagram for AQP::Equal_set_iterator:

Collaboration diagram for AQP::Equal_set_iterator:

Public Member Functions
	Equal_set_iterator (Item_equal &item_equal)
const Item_field *	next ()

Additional Inherited Members
Static Public Member Functions inherited from Sql_alloc
static void *	operator new (size_t size) throw ()
static void *	operator new[] (size_t size) throw ()
static void *	operator new[] (size_t size, MEM_ROOT *mem_root) throw ()
static void *	operator new (size_t size, MEM_ROOT *mem_root) throw ()
static void	operator delete (void *ptr, size_t size)
static void	operator delete (void *ptr, MEM_ROOT *mem_root)
static void	operator delete[] (void *ptr, MEM_ROOT *mem_root)
static void	operator delete[] (void *ptr, size_t size)

Detailed Description

This class is an iterator for iterating over sets of fields (columns) that should have the same value. For example, if the query is SELECT * FROM T1, T2, T3 WHERE T1.b = T2.a AND T2.a = T3.a then there would be such a set of {T1.b, T2.a, T3.a}.

Definition at line 100 of file abstract_query_plan.h.

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

• sql/abstract_query_plan.h