Additional fix for BUG#7049, after review.

Make sure "select" aborts when finding a SP condition handler beyond the current scope.


mysql-test/r/sp.result:
  Updated test results after fixing error handling in select.
sql/mysqld.cc:
  Make sure "select" aborts when finding a SP condition handler beyond the current scope.
sql/protocol.cc:
  Make sure "select" aborts when finding a SP condition handler beyond the current scope.
sql/sp_rcontext.h:
  Added method for checking if the handler was found in the current context.
sql/sql_error.cc:
  Make sure "select" aborts when finding a SP condition handler beyond the current scope.

mysql-test/r/sp.result

@@ -3310,7 +3310,6 @@ select 1|
 1
 call bug12379_1()|
 bug12379()
-NULL
 42
 42
 select 2|
@@ -3318,7 +3317,6 @@ select 2|
 2
 call bug12379_2()|
 bug12379()
-NULL
 select 3|
 3
 3

sql/mysqld.cc

@@ -2342,6 +2342,8 @@ static int my_message_sql(uint error, const char *str, myf MyFlags)
     if (thd->spcont &&
         thd->spcont->find_handler(error, MYSQL_ERROR::WARN_LEVEL_ERROR))
     {
+      if (! thd->spcont->found_handler_here())
+        thd->net.report_error= 1; /* Make "select" abort correctly */ 
       DBUG_RETURN(0);
     }
 

sql/protocol.cc

@@ -76,6 +76,8 @@ void net_send_error(THD *thd, uint sql_errno, const char *err)
   if (thd->spcont && thd->spcont->find_handler(sql_errno,
                                                MYSQL_ERROR::WARN_LEVEL_ERROR))
   {
+    if (! thd->spcont->found_handler_here())
+      thd->net.report_error= 1; /* Make "select" abort correctly */ 
     DBUG_VOID_RETURN;
   }
   thd->query_error=  1; // needed to catch query errors during replication
@@ -181,6 +183,8 @@ net_printf_error(THD *thd, uint errcode, ...)
   if (thd->spcont && thd->spcont->find_handler(errcode,
                                                MYSQL_ERROR::WARN_LEVEL_ERROR))
   {
+    if (! thd->spcont->found_handler_here())
+      thd->net.report_error= 1; /* Make "select" abort correctly */ 
     DBUG_VOID_RETURN;
   }
   thd->query_error=  1; // needed to catch query errors during replication

sql/sp_rcontext.h

@@ -149,6 +149,13 @@ class sp_rcontext : public Sql_alloc
     return m_handler[m_hfound].type;
   }
 
+  // Returns true if we found a handler in this context
+  inline bool
+  found_handler_here()
+  {
+    return (m_hfound >= 0);
+  }
+
   // Clears the handler find state
   inline void
   clear_handler()

sql/sql_error.cc

@@ -144,6 +144,8 @@ MYSQL_ERROR *push_warning(THD *thd, MYSQL_ERROR::enum_warning_level level,
                                  thd->really_abort_on_warning()) ?
                                 MYSQL_ERROR::WARN_LEVEL_ERROR : level))
   {
+    if (! thd->spcont->found_handler_here())
+      thd->net.report_error= 1; /* Make "select" abort correctly */ 
     DBUG_RETURN(NULL);
   }
   query_cache_abort(&thd->net);