Commit f74f3776 authored by unknown's avatar unknown
Browse files

Merge april.(none):/home/svoj/devel/mysql/BUG20256/mysql-5.0-engines 

into  april.(none):/home/svoj/devel/mysql/BUG20256/mysql-5.1-engines


sql/ha_myisam.cc:
  Auto merged
sql/ha_myisam.h:
  Auto merged
sql/handler.cc:
  Auto merged
BitKeeper/deleted/.del-index_merge.result:
  Auto merged
mysql-test/include/index_merge1.inc:
  Manual merge.
sql/handler.h:
  Manual merge.
sql/opt_range.cc:
  Manual merge.
parents 4b14a01f fa1436bf

mysql-test/include/index_merge1.inc

+32 −0
Original line number Diff line number Diff line
@@ -407,3 +407,35 @@ explain select * from t3 where a=1 and b=1; 
drop table t3;

drop table t0, t1, t2;

}



#

# BUG#20256 - LOCK WRITE - MyISAM

#

CREATE TABLE t1(a INT);

INSERT INTO t1 VALUES(1);

CREATE TABLE t2(a INT, b INT, dummy CHAR(16) DEFAULT '', KEY(a), KEY(b));

INSERT INTO t2(a,b) VALUES

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),

(1,2);

LOCK TABLES t1 WRITE, t2 WRITE;

INSERT INTO t2(a,b) VALUES(1,2);

SELECT t2.a FROM t1,t2 WHERE t2.b=2 AND t2.a=1;

UNLOCK TABLES;

DROP TABLE t1, t2;

sql/ha_myisam.cc

+8 −0
Original line number Diff line number Diff line
@@ -147,6 +147,14 @@ ha_myisam::ha_myisam(TABLE_SHARE *table_arg) 
   can_enable_indexes(1)

{}



handler *ha_myisam::clone(MEM_ROOT *mem_root)

{

  ha_myisam *new_handler= static_cast <ha_myisam *>(handler::clone(mem_root));

  if (new_handler)

    new_handler->file->state= file->state;

  return new_handler;

}





static const char *ha_myisam_exts[] = {

  ".MYI",

sql/ha_myisam.h

+1 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ class ha_myisam: public handler 
 public:

  ha_myisam(TABLE_SHARE *table_arg);

  ~ha_myisam() {}

  handler *clone(MEM_ROOT *mem_root);

  const char *table_type() const { return "MyISAM"; }

  const char *index_type(uint key_number);

  const char **bas_ext() const;

sql/handler.cc

+9 −0
Original line number Diff line number Diff line
@@ -1416,6 +1416,15 @@ int ha_delete_table(THD *thd, handlerton *table_type, const char *path, 
/****************************************************************************

** General handler functions

****************************************************************************/

handler *handler::clone(MEM_ROOT *mem_root)

{

  handler *new_handler= get_new_handler(table, mem_root, table->s->db_type);

  if (new_handler && !new_handler->ha_open(table->s->path, table->db_stat,

                                           HA_OPEN_IGNORE_IF_LOCKED))

    return new_handler;

  return NULL;

}







void handler::ha_statistic_increment(ulong SSV::*offset) const

sql/handler.h

+1 −0
Original line number Diff line number Diff line
@@ -942,6 +942,7 @@ class handler :public Sql_alloc 
  {

    /* TODO: DBUG_ASSERT(inited == NONE); */

  }

  virtual handler *clone(MEM_ROOT *mem_root);

  /* This is called after create to allow us to set up cached variables */

  void init()

  {