utils.cc File Reference

#include "sql/statement/utils.h"
#include "sql/protocol.h"
#include "sql/sp.h"
#include "sql/sp_head.h"
#include "sql/sp_rcontext.h"
#include "sql/sql_class.h"

Functions
bool	set_sp_multi_result_state (THD *thd, LEX *lex)
	Sets multi-result state for SP being executed by the Statement_handle family. More...
void	set_query_for_display (THD *thd)
	Set query to be displayed in performance schema. More...
LEX_CSTRING	convert_and_store (MEM_ROOT *mem_root, const char *str, size_t length, const CHARSET_INFO *src_cs, const CHARSET_INFO *dst_cs)
	Potentially convert a string from src charset to destination charset and store the returned string on the specified memroot. More...

Function Documentation

convert_and_store()

LEX_CSTRING convert_and_store	(	MEM_ROOT *	mem_root,
		const char *	str,
		size_t	length,
		const CHARSET_INFO *	src_cs,
		const CHARSET_INFO *	dst_cs
	)

Potentially convert a string from src charset to destination charset and store the returned string on the specified memroot.

Parameters

mem_root	The mem_root to store the result str
str	The input string to be converted
length	Length of the input string
src_cs	Source charset
dst_cs	Dest charset

Returns

LEX_CSTRING Pointer to the converted string on the memroot

set_query_for_display()

void set_query_for_display

(

THD *

thd

)

Set query to be displayed in performance schema.

Parameters

thd	Thread Handle.

set_sp_multi_result_state()

bool set_sp_multi_result_state	(	THD *	thd,
		LEX *	lex
	)

Sets multi-result state for SP being executed by the Statement_handle family.

For SQL SP, flags required for multi-result are set while parsing SP statements. SPs for which parsing its statement is deferred to execution phase, multi-result state is set by this function.

The function invoker need not have to reset this state. State is reset in the Sql_cmd_call::execute_inner.

Parameters

thd	Thread Handle.
lex	Lex instance of SP statement.

Returns

false on Success and true if multi-result can not be used.