#include <query_result.h>

Inheritance diagram for Query_result_dump:

Public Member Functions
	Query_result_dump (sql_exchange *ex)

bool	prepare (THD thd, const mem_root_deque< Item > &list, Query_expression *u) override
	Perform preparation specific to the query expression or DML statement. More...

bool	start_execution (THD *thd) override
	Prepare for execution of the query expression or DML statement. More...

bool	send_data (THD thd, const mem_root_deque< Item > &items) override

Public Member Functions inherited from Query_result_to_file
	Query_result_to_file (sql_exchange *ex)

	~Query_result_to_file () override

bool	needs_file_privilege () const override

bool	check_supports_cursor () const override
	Check if this query result set supports cursors. More...

bool	send_eof (THD *thd) override

void	cleanup () override
	Cleanup after this execution. More...

Public Member Functions inherited from Query_result_interceptor
	Query_result_interceptor ()

uint	field_count (const mem_root_deque< Item * > &) const override

bool	send_result_set_metadata (THD , const mem_root_deque< Item > &, uint) override

bool	is_interceptor () const final
	Checks if this Query_result intercepts and transforms the result set. More...

Public Member Functions inherited from Query_result
	Query_result ()

virtual	~Query_result ()=default

virtual bool	change_query_result (THD , Query_result )
	Change wrapped Query_result. More...

virtual bool	need_explain_interceptor () const

virtual bool	create_table_for_query_block (THD *)
	Create table, only needed to support CREATE TABLE ... SELECT. More...

virtual void	abort_result_set (THD *)

virtual bool	reset ()
	Cleanup after one execution of the unit, to be ready for a next execution inside the same statement. More...

virtual void	set_limit (ha_rows)
	Only overridden (and non-empty) for Query_result_union, q.v. More...

virtual Server_side_cursor *	cursor () const

Additional Inherited Members
Public Attributes inherited from Query_result
ha_rows	estimated_rowcount
	Number of records estimated in this result. More...

double	estimated_cost
	Cost to execute the subquery which produces this result. More...

Protected Attributes inherited from Query_result_to_file
sql_exchange *	exchange

File	file

IO_CACHE	cache

ha_rows	row_count

char	path [FN_REFLEN]

Protected Attributes inherited from Query_result
Query_expression *	unit

Constructor & Destructor Documentation

◆ Query_result_dump()

Query_result_dump::Query_result_dump ( sql_exchange * ex )

inlineexplicit

Member Function Documentation

◆ prepare()

bool Query_result_dump::prepare	(	THD *	,
		const mem_root_deque< Item * > &	,
		Query_expression *	u
	)

overridevirtual

Perform preparation specific to the query expression or DML statement.

Returns: false if success, true if error

Reimplemented from Query_result.

◆ send_data()

bool Query_result_dump::send_data	(	THD *	thd,
		const mem_root_deque< Item * > &	items
	)

overridevirtual

Implements Query_result.

◆ start_execution()

bool Query_result_dump::start_execution ( THD * )

overridevirtual

Prepare for execution of the query expression or DML statement.

Generally, this will have an implementation only for outer-most Query_block objects, such as data change statements (for preparation of the target table(s)) or dump statements (for preparation of target file).

Returns: false if success, true if error

Reimplemented from Query_result.

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

sql/query_result.h
sql/query_result.cc

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ Query_result_dump()

Member Function Documentation

◆ prepare()

◆ send_data()

◆ start_execution()