sp_instr_cpop instruction is added at the end of BEGIN..END block. More...

#include <sp_instr.h>

Inheritance diagram for sp_instr_cpop:

Public Member Functions
	sp_instr_cpop (uint ip, sp_pcontext *ctx, uint count)

void	print (const THD thd, String str) override

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

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
uint	m_count

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

sp_instr_cpop instruction is added at the end of BEGIN..END block.

It's used to remove declared cursors so that they are not visible any longer.

Constructor & Destructor Documentation

◆ sp_instr_cpop()

sp_instr_cpop::sp_instr_cpop	(	uint	ip,
		sp_pcontext *	ctx,
		uint	count
	)

inline

Member Function Documentation

◆ execute()

bool sp_instr_cpop::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_cpop::get_psi_info ( )

inlineoverridevirtual

Implements sp_instr.

◆ print()

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

overridevirtual

Implements sp_printable.

Member Data Documentation

◆ m_count

uint sp_instr_cpop::m_count

private

◆ psi_info

PSI_statement_info sp_instr_cpop::psi_info

static

Initial value:

= {
    0, "cpop", PSI_FLAG_DISABLED | PSI_FLAG_UNTIMED,
    "Stored Program: uninstall a DECLARE CURSOR microcode instruction"}

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