Bug#30689 Wrong content in I_S.VIEWS.VIEW_DEFINITION if VIEW is based on I_S

view_body_utf8 attribute type is changed to 'escaped string'

mysql-test/r/ddl_i18n_koi8r.result

@@ -29,7 +29,8 @@ v2	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VI
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v1'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
-NULL	mysqltest1	v1	SELECT '' AS c1,  AS c2	NONE	YES	root@localhost	DEFINER	koi8r	koi8r_general_ci
+NULL	mysqltest1	v1	SELECT '' AS c1,  AS c2
+FROM t1	NONE	YES	root@localhost	DEFINER	koi8r	koi8r_general_ci
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v2'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
@@ -68,7 +69,8 @@ v2	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VI
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v1'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
-NULL	mysqltest1	v1	SELECT '' AS c1,  AS c2	NONE	YES	root@localhost	DEFINER	koi8r	koi8r_general_ci
+NULL	mysqltest1	v1	SELECT '' AS c1,  AS c2
+FROM t1	NONE	YES	root@localhost	DEFINER	koi8r	koi8r_general_ci
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v2'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION

mysql-test/r/ddl_i18n_utf8.result

@@ -29,7 +29,8 @@ v2	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VI
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v1'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
-NULL	mysqltest1	v1	SELECT 'тест' AS c1, кол AS c2	NONE	YES	root@localhost	DEFINER	utf8	utf8_general_ci
+NULL	mysqltest1	v1	SELECT 'тест' AS c1, кол AS c2
+FROM t1	NONE	YES	root@localhost	DEFINER	utf8	utf8_general_ci
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v2'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
@@ -68,7 +69,8 @@ v2	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VI
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v1'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
-NULL	mysqltest1	v1	SELECT 'тест' AS c1, кол AS c2	NONE	YES	root@localhost	DEFINER	utf8	utf8_general_ci
+NULL	mysqltest1	v1	SELECT 'тест' AS c1, кол AS c2
+FROM t1	NONE	YES	root@localhost	DEFINER	utf8	utf8_general_ci
 
 SELECT * FROM INFORMATION_SCHEMA.VIEWS WHERE table_name = 'v2'|
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION

mysql-test/r/information_schema.result

@@ -387,10 +387,14 @@ Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_par
 select * from information_schema.views where TABLE_NAME like "v%";
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	VIEW_DEFINITION	CHECK_OPTION	IS_UPDATABLE	DEFINER	SECURITY_TYPE	CHARACTER_SET_CLIENT	COLLATION_CONNECTION
 NULL	test	v0	select schema_name from information_schema.schemata	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
-NULL	test	v1	select table_name from information_schema.tables	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
-NULL	test	v2	select column_name from information_schema.columns	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
-NULL	test	v3	select CHARACTER_SET_NAME from information_schema.character_sets	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
-NULL	test	v4	select COLLATION_NAME from information_schema.collations	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
+NULL	test	v1	select table_name from information_schema.tables
+where table_name="v1"	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
+NULL	test	v2	select column_name from information_schema.columns
+where table_name="v2"	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
+NULL	test	v3	select CHARACTER_SET_NAME from information_schema.character_sets
+where CHARACTER_SET_NAME like "latin1%"	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
+NULL	test	v4	select COLLATION_NAME from information_schema.collations
+where COLLATION_NAME like "latin1%"	NONE	NO	root@localhost	DEFINER	latin1	latin1_swedish_ci
 drop view v0, v1, v2, v3, v4;
 create table t1 (a int);
 grant select,update,insert on t1 to mysqltest_1@localhost;
@@ -1540,4 +1544,12 @@ count(*)
 select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='nonexisting';
 count(*)
 0
+CREATE VIEW v1
+AS SELECT *
+FROM INFORMATION_SCHEMA.TABLES;
+SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS where TABLE_NAME = 'v1';
+VIEW_DEFINITION
+SELECT *
+FROM INFORMATION_SCHEMA.TABLES
+DROP VIEW v1;
 End of 5.1 tests.

mysql-test/t/information_schema.test

@@ -1178,4 +1178,14 @@ select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='mysql' AND TA
 select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='mysql' AND TABLE_NAME='';
 select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='';
 select count(*) from INFORMATION_SCHEMA.TABLES where TABLE_SCHEMA='' AND TABLE_NAME='nonexisting';
+
+#
+# Bug#30689 Wrong content in I_S.VIEWS.VIEW_DEFINITION if VIEW is based on I_S
+#
+CREATE VIEW v1
+AS SELECT *
+FROM INFORMATION_SCHEMA.TABLES;
+SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS where TABLE_NAME = 'v1';
+DROP VIEW v1;
+
 --echo End of 5.1 tests.

sql/sql_view.cc

@@ -672,7 +672,7 @@ static File_option view_parameters[]=
   FILE_OPTIONS_STRING},
  {{(char*) STRING_WITH_LEN("view_body_utf8")},
   my_offsetof(TABLE_LIST, view_body_utf8),
-  FILE_OPTIONS_STRING},
+  FILE_OPTIONS_ESTRING},
  {{NullS, 0},			0,
   FILE_OPTIONS_STRING}
 };