Merge bk-internal.mysql.com:/home/bk/mysql-4.0

into mysql.com:/home/my/mysql-4.0

innobase/mem/mem0dbg.c

@@ -20,7 +20,7 @@ Protected by mem_hash_mutex above. */
 static ulint	mem_n_created_heaps 		= 0;
 static ulint	mem_n_allocations	  	= 0;
 static ulint	mem_total_allocated_memory	= 0;
-static ulint	mem_current_allocated_memory	= 0;
+ulint	mem_current_allocated_memory	= 0;
 static ulint	mem_max_allocated_memory	= 0;
 
 /* Size of the hash table for memory management tracking */

mysql-test/r/bdb-crash.result

@@ -30,3 +30,10 @@ ChargeID	ServiceID	ChargeDate	ChargeAmount	FedTaxes	ProvTaxes	ChargeStatus	Charg
 1	1	2001-03-01	1.00	1.00	1.00	New	blablabla	NULL	now
 2	1	2001-03-01	1.00	1.00	1.00	New	NULL	NULL	now
 drop table t1;
+create table t1 (a int) engine=bdb;
+set autocommit=0;
+insert into t1 values(1);
+analyze table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Operation need committed state
+drop table t1;

mysql-test/r/order_by.result

@@ -546,3 +546,11 @@ CREATE TABLE t1 (a INT, b INT);
 SET @id=0;
 UPDATE t1 SET a=0 ORDER BY (a=@id), b;
 DROP TABLE t1;
+create table t1(id int not null auto_increment primary key, t char(12));
+explain select id,t from t1 order by id;
+table	type	possible_keys	key	key_len	ref	rows	Extra
+t1	ALL	NULL	NULL	NULL	NULL	1000	Using filesort
+explain select id,t from t1 force index (primary) order by id;
+table	type	possible_keys	key	key_len	ref	rows	Extra
+t1	index	NULL	PRIMARY	4	NULL	1000	
+drop table t1;

mysql-test/t/bdb-crash.test

@@ -34,3 +34,15 @@ INSERT INTO t1
 VALUES(NULL,1,'2001-03-01',1,1,1,'New',NULL,NULL,'now');
 select * from t1;
 drop table t1;
+
+#
+# Test for bug #2342 "Running ANALYZE TABLE on bdb table 
+#                      inside a transaction hangs server thread"
+#
+
+create table t1 (a int) engine=bdb;
+
+set autocommit=0;
+insert into t1 values(1);
+analyze table t1;
+drop table t1;

mysql-test/t/order_by.test

@@ -352,4 +352,15 @@ CREATE TABLE t1 (a INT, b INT);
 SET @id=0;
 UPDATE t1 SET a=0 ORDER BY (a=@id), b;
 DROP TABLE t1;
-
+create table t1(id int not null auto_increment primary key, t char(12));
+disable_query_log;
+let $1 = 1000;
+while ($1)
+ {
+  eval insert into t1(t) values ('$1'); 
+  dec $1;
+ }
+enable_query_log;
+explain select id,t from t1 order by id;
+explain select id,t from t1 force index (primary) order by id;
+drop table t1;

sql/ha_berkeley.cc

@@ -2099,6 +2099,53 @@ int ha_berkeley::analyze(THD* thd, HA_CHECK_OPT* check_opt)
 {
   DB_BTREE_STAT *stat=0;
   uint i;
+  DB_TXN_STAT *txn_stat_ptr= 0;
+
+  /*
+   Original bdb documentation says:
+   "The DB->stat method cannot be transaction-protected.
+   For this reason, it should be called in a thread of
+   control that has no open cursors or active transactions."
+   So, let's check if there are any changes have been done since
+   the beginning of the transaction..
+  */
+
+  /*
+    If it's a merge conflict here (4.0->4.1), please ignore it!
+
+    The reason of the conflict is the difference between versions of bdb:
+    mysql-4.0 uses bdb 3.2.9
+    mysql-4.1 uses bdb 4.1.24
+    Older one has global functions txn_stat and txn_id but
+    newer one has DB_ENV->txn_stat and DB_TXN->id
+  */
+  if (!txn_stat(db_env, &txn_stat_ptr, 0) &&
+      txn_stat_ptr && txn_stat_ptr->st_nactive>=2)
+  {
+    DB_TXN_ACTIVE *atxn_stmt= 0, *atxn_all= 0;
+    
+    DB_TXN *txn_all= (DB_TXN*) thd->transaction.all.bdb_tid;
+    u_int32_t all_id= txn_id(txn_all);
+    
+    DB_TXN *txn_stmt= (DB_TXN*) thd->transaction.stmt.bdb_tid;
+    u_int32_t stmt_id= txn_id(txn_stmt);
+    
+    DB_TXN_ACTIVE *cur= txn_stat_ptr->st_txnarray;
+    DB_TXN_ACTIVE *end= cur + txn_stat_ptr->st_nactive;
+    for (; cur!=end && (!atxn_stmt || !atxn_all); cur++)
+    {
+      if (cur->txnid==all_id) atxn_all= cur;
+      if (cur->txnid==stmt_id) atxn_stmt= cur;
+    }
+    
+    if (atxn_stmt && atxn_all &&
+	log_compare(&atxn_stmt->lsn,&atxn_all->lsn))
+    {
+      free(txn_stat_ptr);
+      return HA_ADMIN_REJECT;
+    }
+    free(txn_stat_ptr);
+  }
 
   for (i=0 ; i < table->keys ; i++)
   {

sql/handler.h

@@ -40,6 +40,7 @@
 #define HA_ADMIN_CORRUPT         -3
 #define HA_ADMIN_INTERNAL_ERROR  -4
 #define HA_ADMIN_INVALID         -5
+#define HA_ADMIN_REJECT          -6
 
 /* Bits in table_flags() to show what database can do */
 #define HA_READ_RND_SAME	1	/* Read RND-record to KEY-record

sql/sql_select.cc

@@ -6021,7 +6021,7 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
     /* check if we can use a key to resolve the group */
     /* Tables using JT_NEXT are handled here */
     uint nr;
-    key_map keys=usable_keys;
+    key_map keys_to_use=~0,keys=usable_keys;
 
     /*
       If not used with LIMIT, only use keys if the whole query can be
@@ -6029,7 +6029,17 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
       retrieving all rows through an index.
     */
     if (select_limit >= table->file->records)
-      keys&= (table->used_keys | table->file->keys_to_use_for_scanning());
+      keys_to_use= (table->used_keys |table->file->keys_to_use_for_scanning());
+
+    /*
+      We are adding here also the index speified in FORCE INDEX clause, 
+      if any.
+      This is to allow users to use index in ORDER BY.
+    */
+ 
+    if (table->force_index) 
+      keys_to_use|= table->keys_in_use_for_query;
+    keys&= keys_to_use;
 
     for (nr=0; keys ; keys>>=1, nr++)
     {

sql/sql_table.cc

@@ -1330,6 +1330,12 @@ static int mysql_admin_table(THD* thd, TABLE_LIST* tables,
       net_store_data(packet, "Operation failed");
       break;
 
+    case HA_ADMIN_REJECT:
+      net_store_data(packet,"status");
+      net_store_data(packet,"Operation need committed state");
+      open_for_modify= false;
+      break;
+
     case HA_ADMIN_ALREADY_DONE:
       net_store_data(packet, "status");
       net_store_data(packet, "Table is already up to date");