MySQL 5.1: store_key_field Class Reference

store_key_field Class Reference

#include <sql_select.h>

Inheritance diagram for store_key_field:

[legend]Collaboration diagram for store_key_field:


Public Member Functions
	store_key_field (THD thd, Field to_field_arg, char ptr, char null_ptr_arg, uint length, Field from_field, const char name_arg)
enum store_key_result	copy ()
const char *	name () const
Private Attributes
Copy_field	copy_field
const char *	field_name

Detailed Description

Definition at line 491 of file sql_select.h.

Constructor & Destructor Documentation

store_key_field::store_key_field	(	THD *	thd,
		Field *	to_field_arg,
		char *	ptr,
		char *	null_ptr_arg,
		uint	length,
		Field *	from_field,
		const char *	name_arg
	)			`[inline]`

Definition at line 496 of file sql_select.h.

References copy_field, Copy_field::set(), and store_key::to_field.

00498     :store_key(thd, to_field_arg,ptr,
00499                null_ptr_arg ? null_ptr_arg : from_field->maybe_null() ? &err
00500                : NullS,length), field_name(name_arg)
00501   {
00502     if (to_field)
00503     {
00504       copy_field.set(to_field,from_field,0);
00505     }
00506   }

Here is the call graph for this function:

Member Function Documentation

enum store_key_result store_key_field::copy ( ) [inline, virtual]

Implements store_key.

Definition at line 507 of file sql_select.h.

References copy_field, dbug_tmp_restore_column_map(), dbug_tmp_use_all_columns(), Copy_field::do_copy, store_key::err, store_key::STORE_KEY_FATAL, store_key::STORE_KEY_OK, Field::table, Copy_field::to_field, and st_table::write_set.

00508   {
00509     TABLE *table= copy_field.to_field->table;
00510     my_bitmap_map *old_map= dbug_tmp_use_all_columns(table,
00511                                                      table->write_set);
00512     copy_field.do_copy(&copy_field);
00513     dbug_tmp_restore_column_map(table->write_set, old_map);
00514     return err != 0 ? STORE_KEY_FATAL : STORE_KEY_OK;
00515   }