Merge mysql.com:/home/jonas/src/mysql-4.1

into mysql.com:/home/jonas/src/mysql-5.0

include/hash.h

@@ -47,7 +47,7 @@ my_bool _hash_init(HASH *hash, CHARSET_INFO *charset,
 		   uint key_length, hash_get_key get_key,
 		   void (*free_element)(void*), uint flags CALLER_INFO_PROTO);
 void hash_free(HASH *tree);
-void hash_reset(HASH *hash);
+void my_hash_reset(HASH *hash);
 byte *hash_element(HASH *hash,uint idx);
 gptr hash_search(HASH *info,const byte *key,uint length);
 gptr hash_next(HASH *info,const byte *key,uint length);

mysql-test/r/ndb_index_ordered.result

@@ -529,3 +529,19 @@ count(*)-8
 select count(*)-9 from t1 use index (ti) where ti <= '23:59:59';
 count(*)-9
 0
+drop table t1;
+create table t1(a int primary key, b int not null, index(b));
+insert into t1 values (1,1), (2,2);
+set autocommit=0;
+begin;
+select count(*) from t1;
+count(*)
+2
+ALTER TABLE t1 ADD COLUMN c int;
+select a from t1 where b = 2;
+a
+2
+show tables;
+Tables_in_test
+t1
+drop table t1;

mysql-test/t/ndb_index_ordered.test

@@ -267,3 +267,21 @@ select count(*)-5 from t1 use index (ti) where ti <  '10:11:11';
 select count(*)-6 from t1 use index (ti) where ti <= '10:11:11';
 select count(*)-8 from t1 use index (ti) where ti <  '23:59:59';
 select count(*)-9 from t1 use index (ti) where ti <= '23:59:59';
+
+drop table t1;
+
+# bug#7798
+create table t1(a int primary key, b int not null, index(b));
+insert into t1 values (1,1), (2,2);
+connect (con1,localhost,,,test);
+connect (con2,localhost,,,test);
+connection con1;
+set autocommit=0;
+begin;
+select count(*) from t1;
+connection con2;
+ALTER TABLE t1 ADD COLUMN c int;
+connection con1;
+select a from t1 where b = 2;
+show tables;
+drop table t1;

mysys/hash.c

@@ -122,13 +122,13 @@ void hash_free(HASH *hash)
   Delete all elements from the hash (the hash itself is to be reused).
 
   SYNOPSIS
-    hash_reset()
+    my_hash_reset()
     hash   the hash to delete elements of
 */
 
-void hash_reset(HASH *hash)
+void my_hash_reset(HASH *hash)
 {
-  DBUG_ENTER("hash_reset");
+  DBUG_ENTER("my_hash_reset");
   DBUG_PRINT("enter",("hash: 0x%lxd",hash));
 
   hash_free_elements(hash);

ndb/src/kernel/blocks/dbtc/DbtcMain.cpp

@@ -1920,7 +1920,6 @@ void Dbtc::packKeyData000Lab(Signal* signal,
 			     Uint32 totalLen) 
 {
   CacheRecord * const regCachePtr = cachePtr.p;
-  UintR Tmp;
 
   jam();
   Uint32 len = 0;
@@ -8646,14 +8645,16 @@ void Dbtc::execSCAN_TABREQ(Signal* signal)
   apiConnectptr.i = scanTabReq->apiConnectPtr;
   tabptr.i = scanTabReq->tableId;
 
-  if (apiConnectptr.i >= capiConnectFilesize ||
-      tabptr.i >= ctabrecFilesize) {
+  if (apiConnectptr.i >= capiConnectFilesize)
+  {
     jam();
     warningHandlerLab(signal);
     return;
   }//if
+
   ptrAss(apiConnectptr, apiConnectRecord);
   ApiConnectRecord * transP = apiConnectptr.p;
+
   if (transP->apiConnectstate != CS_CONNECTED) {
     jam();
     // could be left over from TCKEYREQ rollback
@@ -8667,9 +8668,16 @@ void Dbtc::execSCAN_TABREQ(Signal* signal)
     } else {
       jam();
       errCode = ZSTATE_ERROR;
-      goto SCAN_TAB_error;
+      goto SCAN_TAB_error_no_state_change;
     }
   }
+
+  if(tabptr.i >= ctabrecFilesize)
+  {
+    errCode = ZUNKNOWN_TABLE_ERROR;
+    goto SCAN_TAB_error;
+  }
+
   ptrAss(tabptr, tableRecord);
   if ((aiLength == 0) ||
       (!tabptr.p->checkTable(schemaVersion)) ||
@@ -8766,8 +8774,18 @@ void Dbtc::execSCAN_TABREQ(Signal* signal)
   errCode = ZNO_SCANREC_ERROR;
   goto SCAN_TAB_error;
  
- SCAN_TAB_error:
+SCAN_TAB_error:
   jam();
+  /**
+   * Prepare for up coming ATTRINFO/KEYINFO
+   */
+  transP->apiConnectstate = CS_ABORTING;
+  transP->abortState = AS_IDLE;
+  transP->transid[0] = transid1;
+  transP->transid[1] = transid2;
+ 
+SCAN_TAB_error_no_state_change:
+  
   ScanTabRef * ref = (ScanTabRef*)&signal->theData[0];
   ref->apiConnectPtr = transP->ndbapiConnect;
   ref->transId1 = transid1;

sql/net_serv.cc

@@ -255,7 +255,7 @@ my_bool
 my_net_write(NET *net,const char *packet,ulong len)
 {
   uchar buff[NET_HEADER_SIZE];
-  if (unlikely(!net->vio)) // nowhere to write
+  if (unlikely(!net->vio))                      /* nowhere to write */
     return 0;
   /*
     Big packets are handled by splitting them in packets of MAX_PACKET_LENGTH

sql/sql_class.h

@@ -742,8 +742,8 @@ public:
   /* Erase all statements (calls Statement destructor) */
   void reset()
   {
-    hash_reset(&names_hash);
-    hash_reset(&st_hash);
+    my_hash_reset(&names_hash);
+    my_hash_reset(&st_hash);
     last_found_statement= 0;
   }