AQP::Equal_set_iterator Class Reference

#include <abstract_query_plan.h>

Inheritance diagram for AQP::Equal_set_iterator:

List of all members.

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

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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}.

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

• abstract_query_plan.h