Explain_table Class Reference

Inheritance diagram for Explain_table:

Collaboration diagram for Explain_table:

Public Member Functions
	Explain_table (THD *const thd_arg, TABLE *const table_arg, const SQL_SELECT *select_arg, uint key_arg, ha_rows limit_arg, bool need_tmp_table_arg, bool need_sort_arg, bool is_update_arg, bool used_key_is_modified_arg)
virtual bool	explain_modify_flags ()

Additional Inherited Members
Protected Member Functions inherited from Explain_table_base
	Explain_table_base (Explain_context_enum context_type_arg, THD *const thd_arg, JOIN *const join_arg)
	Explain_table_base (Explain_context_enum context_type_arg, THD *const thd_arg, TABLE *const table_arg)
virtual bool	explain_partitions ()
virtual bool	explain_possible_keys ()
bool	explain_key_parts (int key, uint key_parts)
bool	explain_key_and_len_quick (const SQL_SELECT *select)
bool	explain_key_and_len_index (int key)
bool	explain_key_and_len_index (int key, uint key_length, uint key_parts)
bool	explain_extra_common (const SQL_SELECT *select, const JOIN_TAB *tab, int quick_type, uint keyno)
bool	explain_tmptable_and_filesort (bool need_tmp_table_arg, bool need_sort_arg)
Protected Attributes inherited from Explain_table_base
const TABLE *	table
key_map	usable_keys

Detailed Description

Explain_table class produce EXPLAIN output for queries without top-level JOIN

This class is a simplified version of the Explain_join class. It works in the context of queries which implementation lacks top-level JOIN object (EXPLAIN single-table UPDATE and DELETE).

Definition at line 387 of file opt_explain.cc.

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

• sql/opt_explain.cc