Merge kpdesk.mysql.com:/home/thek/dev/bug22043/my50-bug22043

into  kpdesk.mysql.com:/home/thek/dev/bug22043/my51-bug22043

mysql-test/r/information_schema.result

@@ -1080,7 +1080,7 @@ CREATE PROCEDURE p1 ()
 BEGIN
 SELECT 'foo' FROM DUAL;
 END |
-ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+ERROR 42000: Unknown database 'information_schema'
 select  ROUTINE_NAME from routines;
 ROUTINE_NAME
 grant all on information_schema.* to 'user1'@'localhost';

mysql-test/t/information_schema.test

@@ -721,7 +721,7 @@ create temporary table schemata(f1 char(10));
 # Bug #10708 SP's can use INFORMATION_SCHEMA as ROUTINE_SCHEMA
 #
 delimiter |;
---error 1044
+--error ER_BAD_DB_ERROR
 CREATE PROCEDURE p1 ()
 BEGIN
   SELECT 'foo' FROM DUAL;

sql/sql_parse.cc

@@ -4383,11 +4383,10 @@ mysql_execute_command(THD *thd)
   {
     uint namelen;
     char *name;
-    int result;
+    int result= SP_INTERNAL_ERROR;
 
     DBUG_ASSERT(lex->sphead != 0);
     DBUG_ASSERT(lex->sphead->m_db.str); /* Must be initialized in the parser */
-
     /*
       Verify that the database name is allowed, optionally
       lowercase it.
@@ -4395,37 +4394,26 @@ mysql_execute_command(THD *thd)
     if (check_db_name(lex->sphead->m_db.str))
     {
       my_error(ER_WRONG_DB_NAME, MYF(0), lex->sphead->m_db.str);
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
+      goto create_sp_error;
     }
 
     /*
-      Check that a database with this name
-      exists.
+      Check that a database directory with this name
+      exists. Design note: This won't work on virtual databases
+      like information_schema.
     */
     if (check_db_dir_existence(lex->sphead->m_db.str))
     {
       my_error(ER_BAD_DB_ERROR, MYF(0), lex->sphead->m_db.str);
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
+      goto create_sp_error;
     }
 
     if (check_access(thd, CREATE_PROC_ACL, lex->sphead->m_db.str, 0, 0, 0,
                      is_schema_db(lex->sphead->m_db.str)))
-    {
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
-    }
+      goto create_sp_error;
 
     if (end_active_trans(thd))
-    {
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
-    }
+      goto create_sp_error;
 
     name= lex->sphead->name(&namelen);
 #ifdef HAVE_DLOPEN
@@ -4436,9 +4424,7 @@ mysql_execute_command(THD *thd)
       if (udf)
       {
         my_error(ER_UDF_EXISTS, MYF(0), name);
-	delete lex->sphead;
-	lex->sphead= 0;
-	goto error;
+        goto create_sp_error;
       }
     }
 #endif
@@ -4480,13 +4466,9 @@ mysql_execute_command(THD *thd)
       if (ps_arena)
         thd->restore_active_arena(ps_arena, &original_arena);
 
-      if (res)
-      {
       /* Error has been already reported. */
-        delete lex->sphead;
-        lex->sphead= 0;
-        goto error;
-      }
+      if (res)
+        goto create_sp_error;
 
       if (thd->slave_thread)
         lex->sphead->m_chistics->suid= SP_IS_NOT_SUID;
@@ -4506,9 +4488,7 @@ mysql_execute_command(THD *thd)
       if (check_global_access(thd, SUPER_ACL))
       {
         my_error(ER_SPECIFIC_ACCESS_DENIED_ERROR, MYF(0), "SUPER");
-        delete lex->sphead;
-        lex->sphead= 0;
-        goto error;
+        goto create_sp_error;
       }
     }
 
@@ -4528,8 +4508,8 @@ mysql_execute_command(THD *thd)
 #endif /* NO_EMBEDDED_ACCESS_CHECKS */
 
     res= (result= lex->sphead->create(thd));
-    if (result == SP_OK)
-    {
+    switch (result) {
+    case SP_OK:
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
       /* only add privileges if really neccessary */
       if (sp_automatic_privileges && !opt_noacl &&
@@ -4545,20 +4525,10 @@ mysql_execute_command(THD *thd)
         close_thread_tables(thd);
       }
 #endif
-      lex->unit.cleanup();
-      delete lex->sphead;
-      lex->sphead= 0;
-      send_ok(thd);
-    }
-    else
-    {
-      switch (result) {
+    break;
     case SP_WRITE_ROW_FAILED:
       my_error(ER_SP_ALREADY_EXISTS, MYF(0), SP_TYPE_STRING(lex), name);
     break;
-      case SP_NO_DB_ERROR:
-	my_error(ER_BAD_DB_ERROR, MYF(0), lex->sphead->m_db.str);
-	break;
     case SP_BAD_IDENTIFIER:
       my_error(ER_TOO_LONG_IDENT, MYF(0), name);
     break;
@@ -4568,14 +4538,21 @@ mysql_execute_command(THD *thd)
     default:
       my_error(ER_SP_STORE_FAILED, MYF(0), SP_TYPE_STRING(lex), name);
     break;
-      }
+    } /* end switch */
+
+    /*
+      Capture all errors within this CASE and
+      clean up the environment.
+    */
+create_sp_error:
     lex->unit.cleanup();
     delete lex->sphead;
     lex->sphead= 0;
+    if (result != SP_OK )
       goto error;
-    }
-    break;
-  }
+    send_ok(thd);
+    break; /* break super switch */
+  } /* end case group bracket */
   case SQLCOM_CALL:
     {
       sp_head *sp;