Merge from 5.1 main tree.

client/mysql.cc

@@ -2101,37 +2101,6 @@ static bool add_line(String &buffer,char *line,char *in_string,
 	continue;
       }
     }
-    else if (!*ml_comment && !*in_string &&
-             (end_of_line - pos) >= 10 &&
-             !my_strnncoll(charset_info, (uchar*) pos, 10,
-                           (const uchar*) "delimiter ", 10))
-    {
-      // Flush previously accepted characters
-      if (out != line)
-      {
-        buffer.append(line, (uint32) (out - line));
-        out= line;
-      }
-
-      // Flush possible comments in the buffer
-      if (!buffer.is_empty())
-      {
-        if (com_go(&buffer, 0) > 0) // < 0 is not fatal
-          DBUG_RETURN(1);
-        buffer.length(0);
-      }
-
-      /*
-        Delimiter wants the get rest of the given line as argument to
-        allow one to change ';' to ';;' and back
-      */
-      buffer.append(pos);
-      if (com_delimiter(&buffer, pos) > 0)
-        DBUG_RETURN(1);
-
-      buffer.length(0);
-      break;
-    }
     else if (!*ml_comment && !*in_string && is_prefix(pos, delimiter))
     {
       // Found a statement. Continue parsing after the delimiter

configure.in

@@ -10,7 +10,7 @@ AC_CANONICAL_SYSTEM
 #
 # When changing major version number please also check switch statement
 # in mysqlbinlog::check_master_version().
-AM_INIT_AUTOMAKE(mysql, 5.1.26-rc)
+AM_INIT_AUTOMAKE(mysql, 5.1.27)
 AM_CONFIG_HEADER([include/config.h:config.h.in])
 
 PROTOCOL_VERSION=10

mysql-test/r/mysql.result

@@ -38,6 +38,8 @@ t2
 t3
 Tables_in_test
 t1
+delimiter
+1
 _
 Test delimiter : from command line
 a

mysql-test/suite/bugs/r/rpl_bug33029.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+create table `t1` (`id` int not null auto_increment primary key);
+create trigger `trg` before insert on `t1` for each row begin end;
+set @@global.debug="+d,simulate_bug33029";
+stop slave;
+start slave;
+insert into `t1` values ();
+select * from t1;
+id
+1

mysql-test/suite/bugs/t/rpl_bug33029.test

+#
+# Bug #36443 Server crashes when executing insert when insert trigger on table
+#
+# Emulating the former bug#33029 situation to see that there is no crash anymore.
+# 
+
+
+source include/master-slave.inc;
+
+create table `t1` (`id` int not null auto_increment primary key);
+create trigger `trg` before insert on `t1` for each row begin end;
+
+sync_slave_with_master;
+set @@global.debug="+d,simulate_bug33029";
+
+stop slave;
+start slave;
+
+connection master;
+
+insert into `t1` values ();
+
+sync_slave_with_master;
+select * from t1;
+

mysql-test/t/mysql_delimiter.sql

@@ -59,3 +59,9 @@ source t/mysql_delimiter_19799.sql
 use test//
 show tables//
 delimiter ; # Reset delimiter
+
+#
+# Bug #33812: mysql client incorrectly parsing DELIMITER
+#
+select a as delimiter from t1
+delimiter ; # Reset delimiter

sql/slave.cc

@@ -4136,6 +4136,7 @@ bool rpl_master_erroneous_autoinc(THD *thd)
   if (active_mi && active_mi->rli.sql_thd == thd)
   {
     Relay_log_info *rli= &active_mi->rli;
+    DBUG_EXECUTE_IF("simulate_bug33029", return TRUE;);
     return rpl_master_has_bug(rli, 33029, FALSE);
   }
   return FALSE;

sql/sql_class.cc

@@ -2882,8 +2882,8 @@ void THD::reset_sub_statement_state(Sub_statement_state *backup,
    */
   if (rpl_master_erroneous_autoinc(this))
   {
-    backup->auto_inc_intervals_forced= auto_inc_intervals_forced;
-    auto_inc_intervals_forced.empty();
+    DBUG_ASSERT(backup->auto_inc_intervals_forced.nb_elements() == 0);
+    auto_inc_intervals_forced.swap(&backup->auto_inc_intervals_forced);
   }
 #endif
   
@@ -2931,8 +2931,8 @@ void THD::restore_sub_statement_state(Sub_statement_state *backup)
    */
   if (rpl_master_erroneous_autoinc(this))
   {
-    auto_inc_intervals_forced= backup->auto_inc_intervals_forced;
-    backup->auto_inc_intervals_forced.empty();
+    backup->auto_inc_intervals_forced.swap(&auto_inc_intervals_forced);
+    DBUG_ASSERT(backup->auto_inc_intervals_forced.nb_elements() == 0);
   }
 #endif
 

sql/structs.h

@@ -314,31 +314,22 @@ private:
   */
   Discrete_interval        *current;
   uint                  elements; // number of elements
-
-  /* helper function for copy construct and assignment operator */
-  void copy_(const Discrete_intervals_list& from)
-  {
-    for (Discrete_interval *i= from.head; i; i= i->next)
+  void set_members(Discrete_interval *h, Discrete_interval *t,
+                   Discrete_interval *c, uint el)
   {  
-      Discrete_interval j= *i;
-      append(&j);
-    }
+    head= h;
+    tail= t;
+    current= c;
+    elements= el;
   }
+  void operator=(Discrete_intervals_list &);  /* prevent use of these */
+  Discrete_intervals_list(const Discrete_intervals_list &);
+
 public:
   Discrete_intervals_list() : head(NULL), current(NULL), elements(0) {};
-  Discrete_intervals_list(const Discrete_intervals_list& from)
-  {
-    copy_(from);
-  }
-  void operator=(const Discrete_intervals_list& from)
-  {
-    empty();
-    copy_(from);
-  }
   void empty_no_free()
   {
-    head= current= NULL;
-    elements= 0;
+    set_members(NULL, NULL, NULL, 0);
   }
   void empty()
   {
@@ -350,7 +341,24 @@ public:
     }
     empty_no_free();
   }
-
+  void copy_shallow(const Discrete_intervals_list * dli)
+  {
+    head= dli->get_head();
+    tail= dli->get_tail();
+    current= dli->get_current();
+    elements= dli->nb_elements();
+  }
+  void swap (Discrete_intervals_list * dli)
+  {
+    Discrete_interval *h, *t, *c;
+    uint el;
+    h= dli->get_head();
+    t= dli->get_tail();
+    c= dli->get_current();
+    el= dli->nb_elements();
+    dli->copy_shallow(this);
+    set_members(h, t, c, el);
+  }
   const Discrete_interval* get_next()
   {
     Discrete_interval *tmp= current;
@@ -364,4 +372,7 @@ public:
   ulonglong minimum()     const { return (head ? head->minimum() : 0); };
   ulonglong maximum()     const { return (head ? tail->maximum() : 0); };
   uint      nb_elements() const { return elements; }
+  Discrete_interval* get_head() const { return head; };
+  Discrete_interval* get_tail() const { return tail; };
+  Discrete_interval* get_current() const { return current; };
 };