Item_user_var_as_out_param Class Reference

Inheritance diagram for Item_user_var_as_out_param:

List of all members.

Public Member Functions
	Item_user_var_as_out_param (Name_string a)
enum Type	type () const
double	val_real ()
longlong	val_int ()
String *	val_str (String *str)
my_decimal *	val_decimal (my_decimal *decimal_buffer)
bool	get_date (MYSQL_TIME *ltime, uint fuzzydate)
bool	get_time (MYSQL_TIME *ltime)
bool	fix_fields (THD *thd, Item **ref)
virtual void	print (String *str, enum_query_type query_type)
void	set_null_value (const CHARSET_INFO *cs)
void	set_value (const char *str, uint length, const CHARSET_INFO *cs)

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Member Function Documentation

void Item_user_var_as_out_param::print	(	String *	str,
		enum_query_type	query_type
	)		[virtual]

This method is used for to:

• to generate a view definition query (SELECT-statement);
• to generate a SQL-query for EXPLAIN EXTENDED;
• to generate a SQL-query to be shown in INFORMATION_SCHEMA;
• debug.

For more information about view definition query, INFORMATION_SCHEMA query and why they should be generated from the Item-tree,

See also:

mysql_register_view().

Reimplemented from Item.

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

• item_func.h
• item_func.cc