Merge bk-internal:/home/bk/mysql-5.0

into mysql.com:/home/jimw/my/mysql-5.0-clean

configure.in

@@ -6,7 +6,7 @@ AC_PREREQ(2.50)dnl		Minimum Autoconf version required.
 AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # Don't forget to also update the NDB lines below.
-AM_INIT_AUTOMAKE(mysql, 5.0.3-beta)
+AM_INIT_AUTOMAKE(mysql, 5.0.4-beta)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10
@@ -17,7 +17,7 @@ SHARED_LIB_VERSION=14:0:0
 # ndb version
 NDB_VERSION_MAJOR=5
 NDB_VERSION_MINOR=0
-NDB_VERSION_BUILD=3
+NDB_VERSION_BUILD=4
 NDB_VERSION_STATUS="beta"
 
 # Set all version vars based on $VERSION. How do we do this more elegant ?

libmysql/Makefile.shared

@@ -96,7 +96,8 @@ clean-local:
 	      `echo $(sql_cmn_objects) | sed "s;\.lo;.c;g"` \
 	       $(CHARSET_SRCS) $(CHARSET_OBJS) \
 	       $(mystringsextra) $(mysysheaders) $(vioheaders)\
-	       ../linked_client_sources net.c
+	       ../linked_libmysql_sources ../linked_libmysql_r_sources \
+               net.c
 
 conf_to_src_SOURCES = conf_to_src.c
 conf_to_src_LDADD=

libmysql/libmysql.c

@@ -2862,6 +2862,17 @@ int STDCALL mysql_stmt_execute(MYSQL_STMT *stmt)
       mysql->status= MYSQL_STATUS_READY;
       stmt->read_row_func= stmt_read_row_from_cursor;
     }
+    else if (stmt->flags & CURSOR_TYPE_READ_ONLY)
+    {
+      /*
+        This is a single-row result set, a result set with no rows, EXPLAIN,
+        SHOW VARIABLES, or some other command which either a) bypasses the
+        cursors framework in the server and writes rows directly to the
+        network or b) is more efficient if all (few) result set rows are
+        precached on client and server's resources are freed.
+      */
+      DBUG_RETURN(mysql_stmt_store_result(stmt));
+    }
     else
     {
       stmt->mysql->unbuffered_fetch_owner= &stmt->unbuffered_fetch_cancelled;

mysql-test/r/rpl_deadlock.result

@@ -8,6 +8,9 @@ create table t1 (a int not null, key(a)) engine=innodb;
 create table t2 (a int not null, key(a)) engine=innodb;
 create table t3 (a int) engine=innodb;
 create table t4 (a int) engine=innodb;
+show variables like 'slave_transaction_retries';
+Variable_name	Value
+slave_transaction_retries	10
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
@@ -20,6 +23,9 @@ t2	CREATE TABLE `t2` (
   `a` int(11) NOT NULL,
   KEY `a` (`a`)
 ) ENGINE=InnoDB DEFAULT CHARSET=latin1
+show variables like 'slave_transaction_retries';
+Variable_name	Value
+slave_transaction_retries	2
 stop slave;
 begin;
 insert into t3 select * from t2 for update;

mysql-test/r/rpl_timezone.result

@@ -65,6 +65,22 @@ SET @@session.time_zone='Europe/Moscow';
 insert into t1 values ('20040101000000'), ('20040611093902');
 ROLLBACK;
 /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
+delete from t1;
+set time_zone='UTC';
+load data infile '../../std_data/rpl_timezone.dat' into table t1;
+select * from t1;
+t
+2004-01-01 00:00:00
+2004-06-11 09:39:02
+set time_zone='UTC';
+select * from t1;
+t
+2004-01-01 00:00:00
+2004-06-11 09:39:02
+set time_zone='Europe/Moscow';
+set time_zone='Europe/Moscow';
+delete from t1;
+insert into t1 values ('20040101000000'), ('20040611093902');
 set time_zone='MET';
 insert into t2 (select t from t1);
 select * from t1;

mysql-test/r/warnings.result

@@ -142,6 +142,25 @@ Warning	1265	Data truncated for column 'b' at row 10
 select @@warning_count;
 @@warning_count
 50
+set max_error_count=0;
+show variables like 'max_error_count';
+Variable_name	Value
+max_error_count	0
+update t1 set b='hi';
+Warnings:
+select @@warning_count;
+@@warning_count
+50
+show warnings;
+Level	Code	Message
+set max_error_count=65535;
+show variables like 'max_error_count';
+Variable_name	Value
+max_error_count	65535
+set max_error_count=10;
+show variables like 'max_error_count';
+Variable_name	Value
+max_error_count	10
 drop table t1;
 create table t1 (id int) engine=isam;
 Warnings:

mysql-test/std_data/rpl_timezone.dat

+20040101000000
+20040611093902

mysql-test/t/rpl_deadlock.test

@@ -7,6 +7,8 @@
 # (Guilhem) have seen the test manage to provoke lock wait timeout
 # error but not deadlock error; that is ok as code deals with the two
 # errors in exactly the same way.
+# We don't 'show status like 'slave_retried_transactions'' because this
+# is not repeatable (depends on sleeps).
 
 source include/have_innodb.inc;
 source include/master-slave.inc;
@@ -16,10 +18,12 @@ create table t1 (a int not null, key(a)) engine=innodb;
 create table t2 (a int not null, key(a)) engine=innodb;
 create table t3 (a int) engine=innodb;
 create table t4 (a int) engine=innodb;
+show variables like 'slave_transaction_retries';
 sync_slave_with_master;
 
 show create table t1;
 show create table t2;
+show variables like 'slave_transaction_retries';
 stop slave;
 
 # 1) Test deadlock

mysql-test/t/rpl_timezone.test

@@ -49,6 +49,24 @@ connection master;
 --replace_result $MYSQL_TEST_DIR MYSQL_TEST_DIR
 --exec $MYSQL_BINLOG --short-form $MYSQL_TEST_DIR/var/log/master-bin.000001 
 
+# Let us check with LOAD DATA INFILE
+# (we do it after mysqlbinlog because the temp files names are not constant)
+connection master;
+delete from t1;
+set time_zone='UTC';
+load data infile '../../std_data/rpl_timezone.dat' into table t1;
+select * from t1;
+sync_slave_with_master;
+set time_zone='UTC';
+select * from t1;
+set time_zone='Europe/Moscow';
+
+# Put back values of before the LOAD
+connection master;
+set time_zone='Europe/Moscow';
+delete from t1;
+insert into t1 values ('20040101000000'), ('20040611093902');
+
 #
 # Now let us check how well we replicate statments reading TIMESTAMP fields
 # (We should see the same data on master and on slave but it should differ 

mysql-test/t/warnings.test

@@ -96,6 +96,19 @@ update t1 set b=a;
 select @@warning_count;
 --enable_ps_protocol
 
+# Bug#9072
+set max_error_count=0;
+show variables like 'max_error_count';
+update t1 set b='hi';
+--disable_ps_protocol
+select @@warning_count;
+--enable_ps_protocol
+show warnings;
+set max_error_count=65535;
+show variables like 'max_error_count';
+set max_error_count=10;
+show variables like 'max_error_count';
+
 #
 # Test for handler type
 #

sql/mysqld.cc

@@ -3134,8 +3134,17 @@ we force server id to 2, but this MySQL server will not act as a slave.");
 #endif
   if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
     opt_skip_slave_start= 1;
-  /* init_slave() must be called after the thread keys are created */
-  init_slave();
+  /*
+    init_slave() must be called after the thread keys are created.
+    Some parts of the code (e.g. SHOW STATUS LIKE 'slave_running' and other
+    places) assume that active_mi != 0, so let's fail if it's 0 (out of
+    memory); a message has already been printed.
+  */
+  if (init_slave() && !active_mi)
+  {
+    end_thr_alarm(1);				// Don't allow alarms
+    unireg_abort(1);
+  }
 
   if (opt_bootstrap)
   {
@@ -5225,7 +5234,7 @@ The minimum value for this variable is 4096.",
    "Max number of errors/warnings to store for a statement.",
    (gptr*) &global_system_variables.max_error_count,
    (gptr*) &max_system_variables.max_error_count,
-   0, GET_ULONG, REQUIRED_ARG, DEFAULT_ERROR_COUNT, 1, 65535, 0, 1, 0},
+   0, GET_ULONG, REQUIRED_ARG, DEFAULT_ERROR_COUNT, 0, 65535, 0, 1, 0},
   {"max_heap_table_size", OPT_MAX_HEP_TABLE_SIZE,
    "Don't allow creation of heap tables bigger than this.",
    (gptr*) &global_system_variables.max_heap_table_size,
@@ -5690,6 +5699,7 @@ struct show_var_st status_vars[]= {
   {"Select_scan",	       (char*) offsetof(STATUS_VAR, select_scan_count), SHOW_LONG_STATUS},
   {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
   {"Slave_running",            (char*) 0,                       SHOW_SLAVE_RUNNING},
+  {"Slave_retried_transactions",(char*) 0,                      SHOW_SLAVE_RETRIED_TRANS},
   {"Slow_launch_threads",      (char*) &slow_launch_threads,    SHOW_LONG},
   {"Slow_queries",             (char*) offsetof(STATUS_VAR, long_query_count), SHOW_LONG_STATUS},
   {"Sort_merge_passes",	       (char*) offsetof(STATUS_VAR, filesort_merge_passes), SHOW_LONG_STATUS},

sql/slave.cc

@@ -27,6 +27,7 @@
 #include <my_dir.h>
 #include <sql_common.h>
 
+#define MAX_SLAVE_RETRY_PAUSE 5
 bool use_slave_mask = 0;
 MY_BITMAP slave_error_mask;
 
@@ -2528,7 +2529,7 @@ st_relay_log_info::st_relay_log_info()
    ignore_log_space_limit(0), last_master_timestamp(0), slave_skip_counter(0),
    abort_pos_wait(0), slave_run_id(0), sql_thd(0), last_slave_errno(0),
    inited(0), abort_slave(0), slave_running(0), until_condition(UNTIL_NONE),
-   until_log_pos(0)
+   until_log_pos(0), retried_trans(0)
 {
   group_relay_log_name[0]= event_relay_log_name[0]=
     group_master_log_name[0]= 0;
@@ -3261,9 +3262,8 @@ static int exec_relay_log_event(THD* thd, RELAY_LOG_INFO* rli)
           init_master_info()).
           b) init_relay_log_pos(), because the BEGIN may be an older relay log.
         */
-        if (rli->trans_retries--)
+        if (rli->trans_retries < slave_trans_retries)
         {
-          sql_print_information("Slave SQL thread retries transaction");
           if (init_master_info(rli->mi, 0, 0, 0, SLAVE_SQL))
             sql_print_error("Failed to initialize the master info structure");
           else if (init_relay_log_pos(rli,
@@ -3275,7 +3275,15 @@ static int exec_relay_log_event(THD* thd, RELAY_LOG_INFO* rli)
           else
           {
             exec_res= 0;
-            sleep(2); // chance for concurrent connection to get more locks
+	    /* chance for concurrent connection to get more locks */
+            safe_sleep(thd, min(rli->trans_retries, MAX_SLAVE_RETRY_PAUSE),
+		       (CHECK_KILLED_FUNC)sql_slave_killed, (void*)rli);
+            pthread_mutex_lock(&rli->data_lock); // because of SHOW STATUS
+	    rli->trans_retries++;
+            rli->retried_trans++;
+            pthread_mutex_unlock(&rli->data_lock);
+            DBUG_PRINT("info", ("Slave retries transaction "
+                                "rli->trans_retries: %lu", rli->trans_retries));
 	  }
         }
         else
@@ -3285,7 +3293,7 @@ static int exec_relay_log_event(THD* thd, RELAY_LOG_INFO* rli)
                           slave_trans_retries);
       }
       if (!((thd->options & OPTION_BEGIN) && opt_using_transactions))
-        rli->trans_retries= slave_trans_retries; // restart from fresh
+         rli->trans_retries= 0; // restart from fresh
      }
     return exec_res;
   }
@@ -3701,7 +3709,7 @@ slave_begin:
   pthread_mutex_lock(&rli->log_space_lock);
   rli->ignore_log_space_limit= 0;
   pthread_mutex_unlock(&rli->log_space_lock);
-  rli->trans_retries= slave_trans_retries; // start from "no error"
+  rli->trans_retries= 0; // start from "no error"
 
   if (init_relay_log_pos(rli,
 			 rli->group_relay_log_name,

sql/slave.h

@@ -293,7 +293,14 @@ typedef struct st_relay_log_info
   } until_log_names_cmp_result;
 
   char cached_charset[6];
-  ulong trans_retries;
+  /*
+    trans_retries varies between 0 to slave_transaction_retries and counts how
+    many times the slave has retried the present transaction; gets reset to 0
+    when the transaction finally succeeds. retried_trans is a cumulative
+    counter: how many times the slave has retried a transaction (any) since
+    slave started.
+  */
+  ulong trans_retries, retried_trans;
 
   st_relay_log_info();
   ~st_relay_log_info();

sql/sql_prepare.cc

@@ -1970,6 +1970,7 @@ void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
 {
   ulong stmt_id= uint4korr(packet);
   ulong flags= (ulong) ((uchar) packet[4]);
+  Cursor *cursor= 0;
   /*
     Query text for binary log, or empty string if the query is not put into
     binary log.
@@ -2007,15 +2008,17 @@ void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
         statement: we can't open a cursor for it.
       */
       flags= 0;
+      my_error(ER_SP_BAD_CURSOR_QUERY, MYF(0));
+      goto err;
     }
     else
     {
       DBUG_PRINT("info",("Using READ_ONLY cursor"));
       if (!stmt->cursor &&
-          !(stmt->cursor= new (&stmt->main_mem_root) Cursor()))
+          !(cursor= stmt->cursor= new (&stmt->main_mem_root) Cursor()))
         DBUG_VOID_RETURN;
       /* If lex->result is set, mysql_execute_command will use it */
-      stmt->lex->result= &stmt->cursor->result;
+      stmt->lex->result= &cursor->result;
     }
   }
 #ifndef EMBEDDED_LIBRARY
@@ -2061,11 +2064,10 @@ void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
     my_pthread_setprio(pthread_self(), WAIT_PRIOR);
   thd->protocol= &thd->protocol_simple;         // Use normal protocol
 
-  if (flags & (ulong) CURSOR_TYPE_READ_ONLY)
+  if (cursor && cursor->is_open())
   {
-    if (stmt->cursor->is_open())
-      stmt->cursor->init_from_thd(thd);
-    stmt->cursor->state= stmt->state;
+    cursor->init_from_thd(thd);
+    cursor->state= stmt->state;
   }
   else
   {

sql/sql_select.h

@@ -370,7 +370,7 @@ public:
   void close();
 
   void set_unit(SELECT_LEX_UNIT *unit_arg) { unit= unit_arg; }
-  Cursor() :join(0), unit(0) {}
+  Cursor() :Item_arena(TRUE), join(0), unit(0) {}
   ~Cursor();
 };
 

sql/sql_show.cc

@@ -1331,6 +1331,19 @@ static bool show_status_array(THD *thd, const char *wild,
           pthread_mutex_unlock(&LOCK_active_mi);
           break;
         }
+        case SHOW_SLAVE_RETRIED_TRANS:
+        {
+          /*
+            TODO: in 5.1 with multimaster, have one such counter per line in SHOW
+            SLAVE STATUS, and have the sum over all lines here.
+          */
+	  pthread_mutex_lock(&LOCK_active_mi);
+          pthread_mutex_lock(&active_mi->rli.data_lock);
+	  end= int10_to_str(active_mi->rli.retried_trans, buff, 10);
+          pthread_mutex_unlock(&active_mi->rli.data_lock);
+	  pthread_mutex_unlock(&LOCK_active_mi);
+	  break;
+        }
 #endif /* HAVE_REPLICATION */
         case SHOW_OPENTABLES:
           end= int10_to_str((long) cached_tables(), buff, 10);

sql/structs.h

@@ -182,7 +182,7 @@ enum SHOW_TYPE
   SHOW_SSL_CTX_SESS_TIMEOUTS, SHOW_SSL_CTX_SESS_CACHE_FULL,
   SHOW_SSL_GET_CIPHER_LIST,
 #endif /* HAVE_OPENSSL */
-  SHOW_RPL_STATUS, SHOW_SLAVE_RUNNING,
+  SHOW_RPL_STATUS, SHOW_SLAVE_RUNNING, SHOW_SLAVE_RETRIED_TRANS,
   SHOW_KEY_CACHE_LONG, SHOW_KEY_CACHE_CONST_LONG,
   SHOW_LONG_STATUS, SHOW_LONG_CONST_STATUS
 };

tests/mysql_client_test.c

@@ -12782,6 +12782,72 @@ static void test_bug8722()
 }
 
 
+MYSQL_STMT *open_cursor(char *query)
+{
+  int rc;
+  const ulong type= (ulong)CURSOR_TYPE_READ_ONLY;
+
+  MYSQL_STMT *stmt= mysql_stmt_init(mysql);
+  rc= mysql_stmt_prepare(stmt, query, strlen(query));
+  check_execute(stmt, rc);
+
+  mysql_stmt_attr_set(stmt, STMT_ATTR_CURSOR_TYPE, (void*) &type);
+  return stmt;
+}
+
+
+static void test_bug8880()
+{
+  MYSQL_STMT *stmt_list[2], **stmt;
+  MYSQL_STMT **stmt_list_end= (MYSQL_STMT**) stmt_list + 2;
+  int rc;
+
+  myheader("test_bug8880");
+
+  mysql_query(mysql, "drop table if exists t1");
+  mysql_query(mysql, "create table t1 (a int not null primary key, b int)");
+  rc= mysql_query(mysql, "insert into t1 values (1,1)");
+  myquery(rc);                                  /* one check is enough */
+  /*
+    when inserting 2 rows everything works well
+    mysql_query(mysql, "INSERT INTO t1 VALUES (1,1),(2,2)");
+  */
+  for (stmt= stmt_list; stmt < stmt_list_end; stmt++)
+    *stmt= open_cursor("select a from t1");
+  for (stmt= stmt_list; stmt < stmt_list_end; stmt++)
+  {
+    rc= mysql_stmt_execute(*stmt);
+    check_execute(*stmt, rc);
+  }
+  for (stmt= stmt_list; stmt < stmt_list_end; stmt++)
+    mysql_stmt_close(*stmt);
+}
+
+
+static void test_bug9159()
+{
+  MYSQL_STMT *stmt;
+  int rc;
+  const char *stmt_text= "select a, b from t1";
+  const unsigned long type= CURSOR_TYPE_READ_ONLY;
+
+  myheader("test_bug9159");
+
+  mysql_query(mysql, "drop table if exists t1");
+  mysql_query(mysql, "create table t1 (a int not null primary key, b int)");
+  rc= mysql_query(mysql, "insert into t1 values (1,1)");
+  myquery(rc);
+
+  stmt= mysql_stmt_init(mysql);
+  mysql_stmt_prepare(stmt, stmt_text, strlen(stmt_text));
+  mysql_stmt_attr_set(stmt, STMT_ATTR_CURSOR_TYPE, (const void *)&type);
+
+  mysql_stmt_execute(stmt);
+  mysql_stmt_close(stmt);
+  rc= mysql_query(mysql, "drop table if exists t1");
+  myquery(rc);
+}
+
 /*
   Read and parse arguments and MySQL options from my.cnf
 */
@@ -13005,6 +13071,8 @@ static struct my_tests_st my_tests[]= {
   { "test_bug7990", test_bug7990 },
   { "test_bug8378", test_bug8378 },
   { "test_bug8722", test_bug8722 },
+  { "test_bug8880", test_bug8880 },
+  { "test_bug9159", test_bug9159 },
   { 0, 0 }
 };