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BUG#4286 - HANDLER tables are closed by FLUSH TABLE(S).

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BUG#4335 - one name can be handler open'ed many times.
Reworked the HANDLER functions and interface.
Using a HASH to store information on open tables that
survives FLUSH TABLE.
HANDLER tables alias names must now be unique, though it
is allowed in 4.0 to qualify them with the database name
of the base table.
This commit is contained in:
ingo@mysql.com
2004-09-24 18:39:25 +02:00
parent 38f462ae6f
commit e47decfa7f
10 changed files with 999 additions and 317 deletions
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11
sql/mysql_priv.h
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@ -540,12 +540,15 @@ int mysql_find_files(THD *thd,List<char> *files, const char *db,
const char *path, const char *wild, bool dir);
/* sql_handler.cc */
int mysql_ha_open(THD *thd, TABLE_LIST *tables);
int mysql_ha_close(THD *thd, TABLE_LIST *tables,
bool dont_send_ok=0, bool dont_lock=0, bool no_alias=0);
int mysql_ha_close_list(THD *thd, TABLE_LIST *tables, bool flushed=0);
int mysql_ha_open(THD *thd, TABLE_LIST *tables, bool reopen= 0);
int mysql_ha_close(THD *thd, TABLE_LIST *tables);
int mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
int mysql_ha_flush(THD *thd, TABLE_LIST *tables, int mode_flags);
/* mysql_ha_flush mode_flags bits */
#define MYSQL_HA_CLOSE_FINAL 0x00
#define MYSQL_HA_REOPEN_ON_USAGE 0x01
#define MYSQL_HA_FLUSH_ALL 0x02
/* sql_base.cc */
void set_item_name(Item *item,char *pos,uint length);