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Added Unique class to be used for duplicate removal in multi-table delete.

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This commit is contained in:
monty@donna.mysql.fi
2001-05-23 23:47:08 +03:00
parent 8685094e15
commit 02f007436f
9 changed files with 308 additions and 69 deletions
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12
sql/sql_handler.cc
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@ -43,7 +43,8 @@
thd->open_tables=thd->handler_tables; \
thd->handler_tables=tmp; }
static TABLE **find_table_ptr_by_name(THD *thd, char *db, char *table_name);
static TABLE **find_table_ptr_by_name(THD *thd, const char *db,
const char *table_name);
int mysql_ha_open(THD *thd, TABLE_LIST *tables)
{
@ -231,14 +232,15 @@ err:
/* Note: this function differs from find_locked_table() because we're looking
here for alias, not real table name
*/
static TABLE **find_table_ptr_by_name(THD *thd, char *db, char *table_name)
static TABLE **find_table_ptr_by_name(THD *thd, const char *db,
const char *table_name)
{
int dblen;
TABLE **ptr;
if (!db || ! *db) db=thd->db;
if (!db || ! *db) db="";
dblen=strlen(db);
if (!db || ! *db)
db= thd->db ? thd->db : "";
dblen=strlen(db)+1;
ptr=&(thd->handler_tables);
for (TABLE *table=*ptr; table ; table=*ptr)