The instruction corresponds to the FETCH statement. More...

#include <sp_instr.h>

Inheritance diagram for sp_instr_cfetch:

Public Member Functions
	sp_instr_cfetch (uint ip, sp_pcontext *ctx, int cursor_idx)

void	print (const THD thd, String str) override

bool	execute (THD thd, uint nextp) override
	Execute this instruction. More...

void	add_to_varlist (sp_variable *var)

PSI_statement_info *	get_psi_info () override

Public Member Functions inherited from sp_instr
	sp_instr (uint ip, sp_pcontext *ctx)

	~sp_instr () override

uint	get_ip () const

virtual uint	get_cont_dest () const
	Get the continuation destination (instruction pointer for the CONTINUE HANDLER) of this instruction. More...

sp_pcontext *	get_parsing_ctx () const

virtual uint	opt_mark (sp_head , List< sp_instr > leads)
	Mark this instruction as reachable during optimization and return the index to the next instruction. More...

virtual uint	opt_shortcut_jump (sp_head , sp_instr start)
	Short-cut jumps to jumps during optimization. More...

virtual void	opt_move (uint dst, List< sp_branch_instr > *ibp)
	Inform the instruction that it has been moved during optimization. More...

bool	opt_is_marked () const

virtual SQL_I_List< Item_trigger_field > *	get_instr_trig_field_list ()

Public Member Functions inherited from sp_printable
virtual	~sp_printable ()=default

Static Public Attributes
static PSI_statement_info	psi_info

Private Attributes
List< sp_variable >	m_varlist
	List of SP-variables to store fetched values. More...

int	m_cursor_idx
	Used to identify the cursor in the sp_rcontext. More...

Additional Inherited Members
Public Attributes inherited from sp_instr
Query_arena	m_arena

Protected Member Functions inherited from sp_instr
void	clear_da (THD *thd) const
	Clear diagnostics area. More...

Protected Attributes inherited from sp_instr
bool	m_marked
	Show if this instruction is reachable within the SP (used by SP-optimizer). More...

uint	m_ip
	Instruction pointer. More...

sp_pcontext *	m_parsing_ctx
	Instruction parsing context. More...

Detailed Description

The instruction corresponds to the FETCH statement.

It just forwards the close-call to the appropriate sp_cursor object in the sp_rcontext.

Constructor & Destructor Documentation

◆ sp_instr_cfetch()

sp_instr_cfetch::sp_instr_cfetch	(	uint	ip,
		sp_pcontext *	ctx,
		int	cursor_idx
	)

inline

Member Function Documentation

◆ add_to_varlist()

void sp_instr_cfetch::add_to_varlist ( sp_variable * var )

inline

◆ execute()

bool sp_instr_cfetch::execute	(	THD *	thd,
		uint *	nextp
	)

overridevirtual

Execute this instruction.

Parameters

	thd	Thread context
[out]	nextp	index of the next instruction to execute. (For most instructions this will be the instruction following this one). Note that this parameter is undefined in case of errors, use get_cont_dest() to find the continuation instruction for CONTINUE error handlers.

Returns: Error status.

Implements sp_instr.

◆ get_psi_info()

PSI_statement_info * sp_instr_cfetch::get_psi_info ( )

inlineoverridevirtual

Implements sp_instr.

◆ print()

void sp_instr_cfetch::print	(	const THD *	thd,
		String *	str
	)

overridevirtual

Implements sp_printable.

Member Data Documentation

◆ m_cursor_idx

int sp_instr_cfetch::m_cursor_idx

private

Used to identify the cursor in the sp_rcontext.

◆ m_varlist

List<sp_variable> sp_instr_cfetch::m_varlist

private

List of SP-variables to store fetched values.

◆ psi_info

PSI_statement_info sp_instr_cfetch::psi_info

static

Initial value:

= {
    0, "cfetch", PSI_FLAG_DISABLED | PSI_FLAG_UNTIMED,
    "Stored Program: FETCH cursor"}

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

sql/sp_instr.h
sql/sp_instr.cc

Public Member Functions

Static Public Attributes

Private Attributes

Additional Inherited Members