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addition of "REFERENCED_TABLE_SCHEMA",

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"REFERENCED_TABLE_NAME", "REFERENCED_COLUMN_NAME" fields into
  KEY_COLUMN_USAGE table
This commit is contained in:
gluh@gluh.mysql.r18.ru
2005-05-20 16:39:28 +04:00
parent 7582b3d82d
commit 68317fcb0c
4 changed files with 42 additions and 16 deletions
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17
sql/sql_show.cc
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@ -3009,12 +3009,13 @@ static int get_schema_key_column_usage_record(THD *thd,
while ((f_key_info= it++))
{
LEX_STRING *f_info;
LEX_STRING *r_info;
List_iterator_fast<LEX_STRING> it(f_key_info->foreign_fields),
it1(f_key_info->referenced_fields);
uint f_idx= 0;
while ((f_info= it++))
{
it1++; // Ignore r_info
r_info= it1++;
f_idx++;
restore_record(table, s->default_values);
store_key_column_usage(table, base_name, file_name,
@ -3024,6 +3025,17 @@ static int get_schema_key_column_usage_record(THD *thd,
(longlong) f_idx);
table->field[8]->store((longlong) f_idx);
table->field[8]->set_notnull();
table->field[9]->store(f_key_info->referenced_db->str,
f_key_info->referenced_db->length,
system_charset_info);
table->field[9]->set_notnull();
table->field[10]->store(f_key_info->referenced_table->str,
f_key_info->referenced_table->length,
system_charset_info);
table->field[10]->set_notnull();
table->field[11]->store(r_info->str, r_info->length,
system_charset_info);
table->field[11]->set_notnull();
if (schema_table_store_record(thd, table))
DBUG_RETURN(1);
}
@ -3771,6 +3783,9 @@ ST_FIELD_INFO key_column_usage_fields_info[]=
{"COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
{"ORDINAL_POSITION", 10 ,MYSQL_TYPE_LONG, 0, 0, 0},
{"POSITION_IN_UNIQUE_CONSTRAINT", 10 ,MYSQL_TYPE_LONG, 0, 1, 0},
{"REFERENCED_TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"REFERENCED_TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{"REFERENCED_COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
{0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};