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Commit f1e9b721 authored by Vamsikrishna Bhagi's avatar Vamsikrishna Bhagi
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Bug#14463669 FAILURE TO CORRECTLY PARSE ROUTINES IN 

             MYSQLDUMP OUTPUT

Problem: mysqldump when used with option --routines, dumps
         all the routines of the specified database into
         output. The statements in this output are written
         in such a way that they are version safe using C
         style version commenting (of the format
         /*!<version num> <sql statement>*/). If a semicolon
         is present right before closing of the comment in
         dump output, it results in a syntax error while
         importing.


Solution: Version comments for dumped routines are
          specifically to protect the ones older than 5.0.
          When the import is done on 5.0 or later versions,
          entire create statement gets executed as all the
          check conditions at the beginning of the comments
          are cleared. Since the trade off is between the
          performance of newer versions which are more in
          use and protection of very old versions which are
          no longer supported, it is proposed that these
          comments be removed altogether to maintain
          stability of the versions supported.
parent 64e61199
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Showing with 14 additions and 27 deletions
client/mysqldump.c
View file @ f1e9b721
......@@ -2240,7 +2240,6 @@ static uint dump_routines_for_db(char *db)
const char *routine_type[]= {"FUNCTION", "PROCEDURE"};
char db_name_buff[NAME_LEN*2+3], name_buff[NAME_LEN*2+3];
char *routine_name;
char *query_str;
int i;
FILE *sql_file= md_result_file;
MYSQL_RES *routine_res, *routine_list_res;
......@@ -2334,17 +2333,6 @@ static uint dump_routines_for_db(char *db)
fprintf(sql_file, "/*!50003 DROP %s IF EXISTS %s */;\n",
routine_type[i], routine_name);
query_str= cover_definer_clause(row[2], strlen(row[2]),
C_STRING_WITH_LEN("50020"),
C_STRING_WITH_LEN("50003"),
C_STRING_WITH_LEN(" FUNCTION"));
if (!query_str)
query_str= cover_definer_clause(row[2], strlen(row[2]),
C_STRING_WITH_LEN("50020"),
C_STRING_WITH_LEN("50003"),
C_STRING_WITH_LEN(" PROCEDURE"));
if (mysql_num_fields(routine_res) >= 6)
{
if (switch_db_collation(sql_file, db_name_buff, ";",
......@@ -2382,9 +2370,9 @@ static uint dump_routines_for_db(char *db)
fprintf(sql_file,
"DELIMITER ;;\n"
"/*!50003 %s */;;\n"
"%s ;;\n"
"DELIMITER ;\n",
(const char *) (query_str != NULL ? query_str : row[2]));
(const char *) row[2]);
restore_sql_mode(sql_file, ";");
......@@ -2399,7 +2387,6 @@ static uint dump_routines_for_db(char *db)
}
}
my_free(query_str);
}
} /* end of routine printing */
mysql_free_result(routine_res);
......
mysql-test/r/mysqldump.result
View file @ f1e9b721
......@@ -2706,8 +2706,8 @@ UNLOCK TABLES;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 FUNCTION `bug9056_func1`(a INT, b INT) RETURNS int(11)
RETURN a+b */;;
CREATE DEFINER=`root`@`localhost` FUNCTION `bug9056_func1`(a INT, b INT) RETURNS int(11)
RETURN a+b ;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
......@@ -2723,11 +2723,11 @@ DELIMITER ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 FUNCTION `bug9056_func2`(f1 char binary) RETURNS char(1) CHARSET latin1
CREATE DEFINER=`root`@`localhost` FUNCTION `bug9056_func2`(f1 char binary) RETURNS char(1) CHARSET latin1
begin
set f1= concat( 'hello', f1 );
return f1;
end */;;
end ;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
......@@ -2743,8 +2743,8 @@ DELIMITER ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = 'REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ANSI' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER="root"@"localhost"*/ /*!50003 PROCEDURE "a'b"()
select 1 */;;
CREATE DEFINER="root"@"localhost" PROCEDURE "a'b"()
select 1 ;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
......@@ -2760,8 +2760,8 @@ DELIMITER ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `bug9056_proc1`(IN a INT, IN b INT, OUT c INT)
BEGIN SELECT a+b INTO c; end */;;
CREATE DEFINER=`root`@`localhost` PROCEDURE `bug9056_proc1`(IN a INT, IN b INT, OUT c INT)
BEGIN SELECT a+b INTO c; end ;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
......@@ -2777,10 +2777,10 @@ DELIMITER ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`localhost`*/ /*!50003 PROCEDURE `bug9056_proc2`(OUT a INT)
CREATE DEFINER=`root`@`localhost` PROCEDURE `bug9056_proc2`(OUT a INT)
BEGIN
select sum(id) from t1 into a;
END */;;
END ;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
......@@ -3766,8 +3766,8 @@ create procedure mysqldump_test_db.sp1() select 'hello';
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`user1`@`%`*/ /*!50003 PROCEDURE `sp1`()
select 'hello' */;;
CREATE DEFINER=`user1`@`%` PROCEDURE `sp1`()
select 'hello' ;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
......
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