#include "sql/query_term.h"
#include <stdint.h>
#include <stdio.h>
#include <limits>
#include <sstream>
#include <utility>
#include "my_base.h"
#include "my_inttypes.h"
#include "mysql/udf_registration_types.h"
#include "mysql_com.h"
#include "mysqld_error.h"
#include "sql/auth/auth_acls.h"
#include "sql/field.h"
#include "sql/item.h"
#include "sql/join_optimizer/access_path.h"
#include "sql/join_optimizer/cost_model.h"
#include "sql/join_optimizer/explain_access_path.h"
#include "sql/join_optimizer/materialize_path_parameters.h"
#include "sql/query_options.h"
#include "sql/query_result.h"
#include "sql/sql_executor.h"
#include "sql/sql_lex.h"
#include "sql/sql_optimizer.h"
#include "sql/sql_tmp_table.h"
#include "sql/sql_union.h"
#include "sql/table.h"
#include "template_utils.h"

Functions
static AccessPath *	add_materialized_access_path (THD thd, Query_term qt, Mem_root_array< MaterializePathParameters::Operand > &operands, TABLE *dest, ha_rows limit=HA_POS_ERROR)
	Helper method: create a materialized access path, estimate its cost and move it to the best place, cf. More...

static void	dumpAccessPath (int level, AccessPath *p, std::ostringstream &buf)
	Used for debugging/trace. More...

Function Documentation

◆ add_materialized_access_path()

static AccessPath * add_materialized_access_path	(	THD *	thd,
		Query_term *	qt,
		Mem_root_array< MaterializePathParameters::Operand > &	operands,
		TABLE *	dest,
		ha_rows	limit = `HA_POS_ERROR`
	)

static

Helper method: create a materialized access path, estimate its cost and move it to the best place, cf.

doc for MoveCompositeIteratorsFromTablePath

Parameters

thd	session state
qt	query term for which we want to create a materialized access path
operands	the constituent operands (query blocks) we want to materialize
dest	the destination temporary (materialized) table
limit	If not HA_POS_ERROR, the maximum number of rows allowed in the materialized table

Returns: non-empty access path. If empty, this is an error

◆ dumpAccessPath()

static void dumpAccessPath	(	int	level,
		AccessPath *	p,
		std::ostringstream &	buf
	)

static

Used for debugging/trace.

Dumps some info on access path, minion of Query_block::qbPrint.

Parameters

level	level in tree
p	the access path to print
buf	buf the buffer to print into

Functions

Function Documentation

◆ add_materialized_access_path()

◆ dumpAccessPath()