Inheritance diagram for Explain_join:

Public Member Functions
	Explain_join (THD thd_arg, JOIN join_arg, bool need_tmp_table_arg, bool need_order_arg, bool distinct_arg)
Protected Member Functions
virtual bool	shallow_explain ()
virtual bool	explain_table_name ()
virtual bool	explain_join_type ()
virtual bool	explain_key_and_len ()
virtual bool	explain_ref ()
virtual bool	explain_rows_and_filtered ()
virtual bool	explain_extra ()
virtual bool	explain_select_type ()
virtual bool	explain_id ()

Detailed Description

Explain_join class produces EXPLAIN output for JOINs

Member Function Documentation

bool Explain_join::explain_key_and_len ( ) [protected, virtual]

fill col_key and and col_key_len fields together

Reimplemented from Explain.

bool Explain_join::explain_rows_and_filtered ( ) [protected, virtual]

fill col_rows and col_filtered fields together

Reimplemented from Explain.

bool Explain_join::shallow_explain ( ) [protected, virtual]

Explain everything but subqueries

Reimplemented from Explain.

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