Merge MySQL 5.1.46 into MariaDB.

Still two test failures to be solved: main.myisam and main.subselect.

1 files changed, 8 insertions, 2 deletions

diff --git a/sql/sql_class.cc b/sql/sql_class.cc
index 580fe8057cd..51299d4f7e7 100644
--- a/sql/sql_class.cc
+++ b/sql/sql_class.cc
@@ -738,7 +738,7 @@ bool THD::handle_error(uint sql_errno, const char *message,
 {
   for (Internal_error_handler *error_handler= m_internal_handler;
        error_handler;
-       error_handler= m_internal_handler->m_prev_internal_handler)
+       error_handler= error_handler->m_prev_internal_handler)
   {
     if (error_handler->handle_error(sql_errno, message, level, this))
       return TRUE;
@@ -747,10 +747,12 @@ bool THD::handle_error(uint sql_errno, const char *message,
 }
 
 
-void THD::pop_internal_handler()
+Internal_error_handler *THD::pop_internal_handler()
 {
   DBUG_ASSERT(m_internal_handler != NULL);
+  Internal_error_handler *popped_handler= m_internal_handler;
   m_internal_handler= m_internal_handler->m_prev_internal_handler;
+  return popped_handler;
 }
 
 extern "C"
@@ -3165,6 +3167,7 @@ void THD::reset_sub_statement_state(Sub_statement_state *backup,
   }
 #endif
   
+  backup->count_cuted_fields= count_cuted_fields;
   backup->options=         options;
   backup->in_sub_stmt=     in_sub_stmt;
   backup->enable_slow_log= enable_slow_log;
@@ -3203,6 +3206,7 @@ void THD::reset_sub_statement_state(Sub_statement_state *backup,
 
 void THD::restore_sub_statement_state(Sub_statement_state *backup)
 {
+  DBUG_ENTER("THD::restore_sub_statement_state");
 #ifndef EMBEDDED_LIBRARY
   /* BUG#33029, if we are replicating from a buggy master, restore
      auto_inc_intervals_forced so that the top statement can use the
@@ -3229,6 +3233,7 @@ void THD::restore_sub_statement_state(Sub_statement_state *backup)
     /* ha_release_savepoint() never returns error. */
     (void)ha_release_savepoint(this, sv);
   }
+  count_cuted_fields= backup->count_cuted_fields;
   transaction.savepoints= backup->savepoints;
   options=          backup->options;
   in_sub_stmt=      backup->in_sub_stmt;
@@ -3259,6 +3264,7 @@ void THD::restore_sub_statement_state(Sub_statement_state *backup)
   */
   examined_row_count+= backup->examined_row_count;
   cuted_fields+=       backup->cuted_fields;
+  DBUG_VOID_RETURN;
 }