Merge quad.opbmk:/mnt/raid/alik/MySQL/devel/5.0

into  quad.opbmk:/mnt/raid/alik/MySQL/devel/5.0-rt-merged

libmysql/libmysql.c

@@ -2456,7 +2456,7 @@ static my_bool execute(MYSQL_STMT *stmt, char *packet, ulong length)
   int4store(buff+5, 1);                         /* iteration count */
 
   res= test(cli_advanced_command(mysql, COM_STMT_EXECUTE, buff, sizeof(buff),
-                                 packet, length, 1, NULL) ||
+                                 packet, length, 1, stmt) ||
             (*mysql->methods->read_query_result)(mysql));
   stmt->affected_rows= mysql->affected_rows;
   stmt->server_status= mysql->server_status;
@@ -2673,7 +2673,7 @@ stmt_read_row_from_cursor(MYSQL_STMT *stmt, unsigned char **row)
     int4store(buff + 4, stmt->prefetch_rows); /* number of rows to fetch */
     if ((*mysql->methods->advanced_command)(mysql, COM_STMT_FETCH,
                                             buff, sizeof(buff), NullS, 0,
-                                            1, NULL))
+                                            1, stmt))
     {
       set_stmt_errmsg(stmt, net->last_error, net->last_errno, net->sqlstate);
       return 1;
@@ -3340,7 +3340,7 @@ mysql_stmt_send_long_data(MYSQL_STMT *stmt, uint param_number,
     */
     if ((*mysql->methods->advanced_command)(mysql, COM_STMT_SEND_LONG_DATA,
                                             buff, sizeof(buff), data,
-                                            length, 1, NULL))
+                                            length, 1, stmt))
     {
       set_stmt_errmsg(stmt, mysql->net.last_error,
 		      mysql->net.last_errno, mysql->net.sqlstate);
@@ -4737,6 +4737,13 @@ int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt)
   MYSQL_DATA *result= &stmt->result;
   DBUG_ENTER("mysql_stmt_store_result");
 
+  if (!mysql)
+  {
+    /* mysql can be reset in mysql_close called from mysql_reconnect */
+    set_stmt_error(stmt, CR_SERVER_LOST, unknown_sqlstate);
+    DBUG_RETURN(1);
+  }
+
   mysql= mysql->last_used_con;
 
   if (!stmt->field_count)
@@ -4762,7 +4769,7 @@ int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt)
     int4store(buff, stmt->stmt_id);
     int4store(buff + 4, (int)~0); /* number of rows to fetch */
     if (cli_advanced_command(mysql, COM_STMT_FETCH, buff, sizeof(buff),
-                             NullS, 0, 1, NULL))
+                             NullS, 0, 1, stmt))
     {
       set_stmt_errmsg(stmt, net->last_error, net->last_errno, net->sqlstate);
       DBUG_RETURN(1);
@@ -4949,7 +4956,7 @@ static my_bool reset_stmt_handle(MYSQL_STMT *stmt, uint flags)
         char buff[MYSQL_STMT_HEADER]; /* packet header: 4 bytes for stmt id */
         int4store(buff, stmt->stmt_id);
         if ((*mysql->methods->advanced_command)(mysql, COM_STMT_RESET, buff,
-                                                sizeof(buff), 0, 0, 0, NULL))
+                                                sizeof(buff), 0, 0, 0, stmt))
         {
           set_stmt_errmsg(stmt, mysql->net.last_error, mysql->net.last_errno,
                           mysql->net.sqlstate);

mysql-test/r/trigger-trans.result

@@ -140,4 +140,23 @@ select * from t3;
 c
 1
 drop table t1, t2, t3;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1(a INT PRIMARY KEY) ENGINE=innodb;
+CREATE TABLE t2(b INT, FOREIGN KEY(b) REFERENCES t1(a)) ENGINE=innodb;
+INSERT INTO t1 VALUES (1);
+CREATE TRIGGER t1_bd BEFORE DELETE ON t1 FOR EACH ROW SET @a = 1;
+CREATE TRIGGER t1_ad AFTER DELETE ON t1 FOR EACH ROW SET @b = 1;
+SET @a = 0;
+SET @b = 0;
+TRUNCATE t1;
+SELECT @a, @b;
+@a	@b
+0	0
+INSERT INTO t1 VALUES (1);
+DELETE FROM t1;
+SELECT @a, @b;
+@a	@b
+1	1
+DROP TABLE t2, t1;
 End of 5.0 tests

mysql-test/t/mysql_client_test.test

@@ -8,8 +8,8 @@
 # server or run mysql-test-run --debug mysql_client_test and check
 # var/log/mysql_client_test.trace
 
---exec echo "$MYSQL_CLIENT_TEST" > $MYSQLTEST_VARDIR/log/mysql_client_test.log 2>&1
---exec $MYSQL_CLIENT_TEST --getopt-ll-test=25600M >> $MYSQLTEST_VARDIR/log/mysql_client_test.log 2>&1
+--exec echo "$MYSQL_CLIENT_TEST" > $MYSQLTEST_VARDIR/log/mysql_client_test.out.log 2>&1
+--exec $MYSQL_CLIENT_TEST --getopt-ll-test=25600M >> $MYSQLTEST_VARDIR/log/mysql_client_test.out.log 2>&1
 
 # End of 4.1 tests
 echo ok;

mysql-test/t/trigger-trans.test

@@ -128,5 +128,37 @@ drop table t1, t2, t3;
 disconnect connection_update;
 disconnect connection_aux;
 
+#
+# Bug#34643: TRUNCATE crash if trigger and foreign key.
+#
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+
+CREATE TABLE t1(a INT PRIMARY KEY) ENGINE=innodb;
+CREATE TABLE t2(b INT, FOREIGN KEY(b) REFERENCES t1(a)) ENGINE=innodb;
+
+INSERT INTO t1 VALUES (1);
+
+CREATE TRIGGER t1_bd BEFORE DELETE ON t1 FOR EACH ROW SET @a = 1;
+CREATE TRIGGER t1_ad AFTER DELETE ON t1 FOR EACH ROW SET @b = 1;
+
+SET @a = 0;
+SET @b = 0;
+
+TRUNCATE t1;
+
+SELECT @a, @b;
+
+INSERT INTO t1 VALUES (1);
+
+DELETE FROM t1;
+
+SELECT @a, @b;
+
+DROP TABLE t2, t1;
+
 
 --echo End of 5.0 tests

sql-common/client.c

@@ -669,11 +669,12 @@ my_bool
 cli_advanced_command(MYSQL *mysql, enum enum_server_command command,
 		     const char *header, ulong header_length,
 		     const char *arg, ulong arg_length, my_bool skip_check,
-                     MYSQL_STMT *stmt __attribute__((unused)))
+                     MYSQL_STMT *stmt)
 {
   NET *net= &mysql->net;
   my_bool result= 1;
   init_sigpipe_variables
+  my_bool stmt_skip= stmt ? stmt->state != MYSQL_STMT_INIT_DONE : FALSE;
   DBUG_ENTER("cli_advanced_command");
 
   /* Don't give sigpipe errors if the client doesn't want them */
@@ -681,7 +682,7 @@ cli_advanced_command(MYSQL *mysql, enum enum_server_command command,
 
   if (mysql->net.vio == 0)
   {						/* Do reconnect if possible */
-    if (mysql_reconnect(mysql))
+    if (mysql_reconnect(mysql) || stmt_skip)
       DBUG_RETURN(1);
   }
   if (mysql->status != MYSQL_STATUS_READY ||
@@ -712,7 +713,7 @@ cli_advanced_command(MYSQL *mysql, enum enum_server_command command,
       goto end;
     }
     end_server(mysql);
-    if (mysql_reconnect(mysql))
+    if (mysql_reconnect(mysql) || stmt_skip)
       goto end;
     if (net_write_command(net,(uchar) command, header, header_length,
 			  arg, arg_length))
@@ -2518,6 +2519,9 @@ my_bool mysql_reconnect(MYSQL *mysql)
       if (stmt->state != MYSQL_STMT_INIT_DONE)
       {
         stmt->mysql= 0;
+        stmt->last_errno= CR_SERVER_LOST;
+        strmov(stmt->last_error, ER(CR_SERVER_LOST));
+        strmov(stmt->sqlstate, unknown_sqlstate);
       }
       else
       {

sql/sql_delete.cc

@@ -35,6 +35,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
   READ_RECORD	info;
   bool          using_limit=limit != HA_POS_ERROR;
   bool		transactional_table, safe_update, const_cond;
+  bool          triggers_applicable;
   ha_rows	deleted;
   uint usable_index= MAX_KEY;
   SELECT_LEX   *select_lex= &thd->lex->select_lex;
@@ -93,6 +94,11 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
 
   select_lex->no_error= thd->lex->ignore;
 
+  /* NOTE: TRUNCATE must not invoke triggers. */
+
+  triggers_applicable= table->triggers &&
+                       thd->lex->sql_command != SQLCOM_TRUNCATE;
+
   /*
     Test if the user wants to delete all rows and deletion doesn't have
     any side-effects (because of triggers), so we can use optimized
@@ -102,8 +108,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
   */
   if (!using_limit && const_cond && (!conds || conds->val_int()) &&
       !(specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)) &&
-      (thd->lex->sql_command == SQLCOM_TRUNCATE ||
-       !(table->triggers && table->triggers->has_delete_triggers()))
+      !(triggers_applicable && table->triggers->has_delete_triggers())
      )
   {
     deleted= table->file->records;
@@ -217,7 +222,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
   init_ftfuncs(thd, select_lex, 1);
   thd->proc_info="updating";
 
-  if (table->triggers)
+  if (triggers_applicable)
   {
     table->triggers->mark_fields_used(thd, TRG_EVENT_DELETE);
     if (table->triggers->has_triggers(TRG_EVENT_DELETE,
@@ -239,7 +244,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
     if (!(select && select->skip_record())&& !thd->net.report_error )
     {
 
-      if (table->triggers &&
+      if (triggers_applicable &&
           table->triggers->process_triggers(thd, TRG_EVENT_DELETE,
                                             TRG_ACTION_BEFORE, FALSE))
       {
@@ -250,7 +255,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
       if (!(error=table->file->delete_row(table->record[0])))
       {
 	deleted++;
-        if (table->triggers &&
+        if (triggers_applicable &&
             table->triggers->process_triggers(thd, TRG_EVENT_DELETE,
                                               TRG_ACTION_AFTER, FALSE))
         {

sql/sql_prepare.cc

@@ -2516,7 +2516,7 @@ void mysql_stmt_close(THD *thd, char *packet)
   DBUG_ENTER("mysql_stmt_close");
 
   if (!(stmt= find_prepared_statement(thd, stmt_id, "mysql_stmt_close")))
-    DBUG_VOID_RETURN;
+    goto out;
 
   /*
     The only way currently a statement can be deallocated when it's
@@ -2525,6 +2525,9 @@ void mysql_stmt_close(THD *thd, char *packet)
   DBUG_ASSERT(! (stmt->flags & (uint) Prepared_statement::IS_IN_USE));
   (void) stmt->deallocate();
 
+out:
+  /* clear errors, response packet is not expected */
+  thd->clear_error();
   DBUG_VOID_RETURN;
 }
 
@@ -2591,10 +2594,7 @@ void mysql_stmt_get_longdata(THD *thd, char *packet, ulong packet_length)
 #ifndef EMBEDDED_LIBRARY
   /* Minimal size of long data packet is 6 bytes */
   if (packet_length <= MYSQL_LONG_DATA_HEADER)
-  {
-    my_error(ER_WRONG_ARGUMENTS, MYF(0), "mysql_stmt_send_long_data");
-    DBUG_VOID_RETURN;
-  }
+    goto out;
 #endif
 
   stmt_id= uint4korr(packet);
@@ -2602,7 +2602,7 @@ void mysql_stmt_get_longdata(THD *thd, char *packet, ulong packet_length)
 
   if (!(stmt=find_prepared_statement(thd, stmt_id,
                                      "mysql_stmt_send_long_data")))
-    DBUG_VOID_RETURN;
+    goto out;
 
   param_number= uint2korr(packet);
   packet+= 2;
@@ -2614,7 +2614,7 @@ void mysql_stmt_get_longdata(THD *thd, char *packet, ulong packet_length)
     stmt->last_errno= ER_WRONG_ARGUMENTS;
     sprintf(stmt->last_error, ER(ER_WRONG_ARGUMENTS),
             "mysql_stmt_send_long_data");
-    DBUG_VOID_RETURN;
+    goto out;
   }
 #endif
 
@@ -2630,6 +2630,10 @@ void mysql_stmt_get_longdata(THD *thd, char *packet, ulong packet_length)
     stmt->last_errno= ER_OUTOFMEMORY;
     sprintf(stmt->last_error, ER(ER_OUTOFMEMORY), 0);
   }
+
+out:
+  /* clear errors, response packet is not expected */
+  thd->clear_error();
   DBUG_VOID_RETURN;
 }
 

tests/mysql_client_test.c

@@ -11746,6 +11746,7 @@ static void test_bug5194()
 
     rc= mysql_stmt_execute(stmt);
     check_execute(stmt, rc);
+    mysql_stmt_reset(stmt);
   }
 
   mysql_stmt_close(stmt);
@@ -15952,83 +15953,6 @@ static void test_bug27592()
   DBUG_VOID_RETURN;
 }
 
-#if 0
-
-static void test_bug29948()
-{
-  MYSQL *dbc=NULL;
-  MYSQL_STMT *stmt=NULL;
-  MYSQL_BIND bind;
-
-  int res=0;
-  my_bool auto_reconnect=1, error=0, is_null=0;
-  char kill_buf[20];
-  const char *query;
-  int buf;
-  unsigned long length, cursor_type;
-  
-  dbc = mysql_init(NULL);
-  DIE_UNLESS(dbc);
-
-  mysql_options(dbc, MYSQL_OPT_RECONNECT, (char*)&auto_reconnect);
-  if (!mysql_real_connect(dbc, opt_host, opt_user,
-                           opt_password, current_db, opt_port,
-                           opt_unix_socket,
-                          (CLIENT_FOUND_ROWS | CLIENT_MULTI_STATEMENTS |
-                           CLIENT_MULTI_RESULTS)))
-  {
-    printf("connection failed: %s (%d)", mysql_error(dbc),
-           mysql_errno(dbc));
-    exit(1);
-  }
-
-  bzero(&bind, sizeof(bind));
-  bind.buffer_type= MYSQL_TYPE_LONG;
-  bind.buffer= (char *)&buf;
-  bind.is_null= &is_null;
-  bind.error= &error;
-  bind.length= &length;
-
-  res= mysql_query(dbc, "DROP TABLE IF EXISTS t1");
-  myquery(res);
-  res= mysql_query(dbc, "CREATE TABLE t1 (a INT)");
-  myquery(res);
-  res= mysql_query(dbc, "INSERT INTO t1 VALUES(1)");
-  myquery(res);
-
-  stmt= mysql_stmt_init(dbc);
-  check_stmt(stmt);
-
-  cursor_type= CURSOR_TYPE_READ_ONLY;
-  res= mysql_stmt_attr_set(stmt, STMT_ATTR_CURSOR_TYPE, (void *)&cursor_type);
-  myquery(res);
-
-  query= "SELECT * from t1 where a=?";
-  res= mysql_stmt_prepare(stmt, query, strlen(query));
-  myquery(res);
-
-  res= mysql_stmt_bind_param(stmt, &bind);
-  myquery(res);
-
-  res= mysql_stmt_execute(stmt);
-  check_execute(stmt, res);
-
-  res= mysql_stmt_bind_result(stmt,&bind);
-  check_execute(stmt, res);
-    
-  sprintf(kill_buf, "kill %ld", dbc->thread_id);
-  mysql_query(dbc, kill_buf);
-
-  res= mysql_stmt_store_result(stmt);
-  DIE_UNLESS(res);
-
-  mysql_stmt_free_result(stmt);
-  mysql_stmt_close(stmt);
-  mysql_query(dbc, "DROP TABLE t1");
-  mysql_close(dbc);
-}
-
-#endif
 
 /**
   Bug#29306 Truncated data in MS Access with decimal (3,1) columns in a VIEW
@@ -16556,7 +16480,6 @@ static struct my_tests_st my_tests[]= {
   { "test_bug28505", test_bug28505 },
   { "test_bug28934", test_bug28934 },
   { "test_bug27592", test_bug27592 },
-  /* { "test_bug29948", test_bug29948 }, Bug#35103 */
   { "test_bug29306", test_bug29306 },
   { "test_bug31669", test_bug31669 },
   { "test_bug32265", test_bug32265 },