SQL_SELECT Class Reference

Inheritance diagram for SQL_SELECT:

Collaboration diagram for SQL_SELECT:

Public Member Functions
void	cleanup ()
void	set_quick (QUICK_SELECT_I *new_quick)
bool	check_quick (THD *thd, bool force_quick_range, ha_rows limit)
bool	skip_record (THD *thd, bool *skip_record)
int	test_quick_select (THD *thd, key_map keys, table_map prev_tables, ha_rows limit, bool force_quick_range, const ORDER::enum_order interesting_order)

Public Attributes
QUICK_SELECT_I *	quick
Item *	cond
Item *	icp_cond
TABLE *	head
IO_CACHE	file
ha_rows	records
double	read_time
key_map	quick_keys
key_map	needed_reg
table_map	const_tables
table_map	read_tables
bool	free_cond
bool	traced_before

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

Definition at line 905 of file opt_range.h.

Member Data Documentation

bool SQL_SELECT::traced_before

Used for QS_DYNAMIC_RANGE, i.e., "Range checked for each record". Used by optimizer tracing to decide whether or not dynamic range analysis of this select has been traced already. If optimizer trace option DYNAMIC_RANGE is enabled, range analysis will be traced with different ranges for every record to the left of this table in the join. If disabled, range analysis will only be traced for the first range.

Definition at line 928 of file opt_range.h.

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

• sql/opt_range.h
• sql/opt_range.cc