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MDEV-3944: Allow derived tables in VIEWS

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This commit is contained in:
Oleksandr Byelkin
2016-02-25 14:55:04 +01:00
parent 1f89ea8ea0
commit 7166069537
15 changed files with 450 additions and 57 deletions
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15
mysql-test/r/cte_nonrecursive.result
View File

@@ -543,9 +543,8 @@ c a
explain explain
select * from v1; select * from v1;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 32 1 SIMPLE t2 ALL NULL NULL NULL NULL 4
2 DERIVED t2 ALL NULL NULL NULL NULL 4 1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
# with claused in the specification of a materialized view # with claused in the specification of a materialized view
create view v2 as create view v2 as
with t as (select a, count(*) from t1 where b >= 'c' group by a) with t as (select a, count(*) from t1 where b >= 'c' group by a)
@@ -560,9 +559,8 @@ c a count(*)
explain explain
select * from v2; select * from v2;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8 1 PRIMARY t2 ALL NULL NULL NULL NULL 4 Using where
2 DERIVED t2 ALL NULL NULL NULL NULL 4 Using where 1 PRIMARY <derived3> ref key0 key0 5 test.t2.c 2
2 DERIVED <derived3> ref key0 key0 5 test.t2.c 2
3 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort 3 SUBQUERY t1 ALL NULL NULL NULL NULL 8 Using where; Using temporary; Using filesort
# with clause in the specification of a view that whose definition # with clause in the specification of a view that whose definition
# table alias for a with table # table alias for a with table
@@ -593,9 +591,8 @@ c d
explain explain
select * from v4; select * from v4;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 64 1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where
2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where 1 SIMPLE t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
2 DERIVED t1 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join)
drop view v1,v2,v3,v4; drop view v1,v2,v3,v4;
# currently any views containing with clause are not updatable # currently any views containing with clause are not updatable
create view v1(a) as create view v1(a) as

4
mysql-test/r/sp-error.result
View File

@@ -1235,8 +1235,8 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp
CREATE PROCEDURE bug20953() CREATE PROCEDURE bug20953()
CREATE VIEW v AS SELECT i FROM t1 PROCEDURE ANALYSE(); CREATE VIEW v AS SELECT i FROM t1 PROCEDURE ANALYSE();
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE()' at line 2 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'PROCEDURE ANALYSE()' at line 2
CREATE PROCEDURE bug20953() CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d1; CREATE PROCEDURE bug20953() CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d1 into @w;
ERROR HY000: View's SELECT contains a subquery in the FROM clause ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'into @w' at line 1
CREATE PROCEDURE bug20953(i INT) CREATE VIEW v AS SELECT i; CREATE PROCEDURE bug20953(i INT) CREATE VIEW v AS SELECT i;
ERROR HY000: View's SELECT contains a variable or parameter ERROR HY000: View's SELECT contains a variable or parameter
CREATE PROCEDURE bug20953() CREATE PROCEDURE bug20953()

254
mysql-test/r/view.result
View File

@@ -930,7 +930,7 @@ create table t1 (a int);
create view v1 as select a from t1 procedure analyse(); create view v1 as select a from t1 procedure analyse();
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'procedure analyse()' at line 1 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'procedure analyse()' at line 1
create view v1 as select 1 from (select 1) as d1; create view v1 as select 1 from (select 1) as d1;
ERROR HY000: View's SELECT contains a subquery in the FROM clause drop view v1;
drop table t1; drop table t1;
create table t1 (s1 int, primary key (s1)); create table t1 (s1 int, primary key (s1));
create view v1 as select * from t1; create view v1 as select * from t1;
@@ -1494,7 +1494,7 @@ a
create view v2 (a,b) as select t1.b as a, t2.a as b from t1, t2; create view v2 (a,b) as select t1.b as a, t2.a as b from t1, t2;
set updatable_views_with_limit=NO; set updatable_views_with_limit=NO;
update v2 set a= 10 where a=200 limit 1; update v2 set a= 10 where a=200 limit 1;
ERROR HY000: The target table t1 of the UPDATE is not updatable ERROR HY000: The target table v2 of the UPDATE is not updatable
set updatable_views_with_limit=DEFAULT; set updatable_views_with_limit=DEFAULT;
select * from v3; select * from v3;
a b a b
@@ -3209,15 +3209,11 @@ code COUNT(DISTINCT country)
DROP VIEW v1; DROP VIEW v1;
DROP TABLE t1; DROP TABLE t1;
DROP VIEW IF EXISTS v1; DROP VIEW IF EXISTS v1;
SELECT * FROM (SELECT 1) AS t; SELECT * FROM (SELECT 1) AS t into @w;
1 CREATE VIEW v1 AS SELECT * FROM (SELECT 1) AS t into @w;
1 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'into @w' at line 1
CREATE VIEW v1 AS SELECT * FROM (SELECT 1) AS t;
ERROR HY000: View's SELECT contains a subquery in the FROM clause
# Previously the following would fail. # Previously the following would fail.
SELECT * FROM (SELECT 1) AS t; SELECT * FROM (SELECT 1) AS t into @w;
1
1
drop view if exists view_24532_a; drop view if exists view_24532_a;
drop view if exists view_24532_b; drop view if exists view_24532_b;
drop table if exists table_24532; drop table if exists table_24532;
@@ -4100,7 +4096,7 @@ ERROR HY000: The target table v1 of the INSERT is not insertable-into
DELETE from v1; DELETE from v1;
ERROR HY000: The target table v1 of the DELETE is not updatable ERROR HY000: The target table v1 of the DELETE is not updatable
UPDATE v3 SET b= 10; UPDATE v3 SET b= 10;
ERROR HY000: The target table v2 of the UPDATE is not updatable ERROR HY000: The target table v3 of the UPDATE is not updatable
REPLACE v3 SET b= 10; REPLACE v3 SET b= 10;
ERROR HY000: The target table v3 of the INSERT is not insertable-into ERROR HY000: The target table v3 of the INSERT is not insertable-into
INSERT into v3(b) values (20); INSERT into v3(b) values (20);
@@ -5953,5 +5949,241 @@ t3 CREATE TABLE `t3` (
DROP VIEW v1; DROP VIEW v1;
DROP TABLE t1,t2,t3; DROP TABLE t1,t2,t3;
# #
# MDEV-3944: Allow derived tables in VIEWS
#
create table t1 (s1 int);
insert into t1 values (1),(2),(3);
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM t1 WHERE s1>1) AS x;
CREATE VIEW v2 AS SELECT * FROM (SELECT s1 FROM t1 WHERE s1<3) AS x;
select * from v1;
s1
2
3
select * from v2;
s1
1
2
select * from v1 natural join v2;
s1
2
select * from v1 natural join t1;
s1
2
3
select * from v1 natural join (SELECT s1 FROM t1 WHERE s1<3) as x;
s1
2
select * from v1 left join v2 on (v1.s1=v2.s1);
s1 s1
2 2
3 NULL
select * from v1 left join t1 on (v1.s1=t1.s1);
s1 s1
2 2
3 3
select * from t1 left join v2 on (t1.s1=v2.s1);
s1 s1
1 1
2 2
3 NULL
select * from v1 left join (SELECT s1 FROM t1 WHERE s1<3) as x on (v1.s1=x.s1);
s1 s1
2 2
3 NULL
select * from (SELECT s1 FROM t1 WHERE s1>1) AS x left join v2 on (x.s1=v2.s1);
s1 s1
2 2
3 NULL
drop view v1,v2;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
CREATE VIEW v2 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
> -100) as xx WHERE s1<3) AS x;
insert into t1 values (200),(-200);
select * from t1;
s1
-200
1
2
200
3
select * from v1;
s1
2
3
select * from v2;
s1
1
2
select * from v1 natural join v2;
s1
2
select * from v1 natural join t1;
s1
2
3
select * from v1 natural join (SELECT s1 FROM t1 WHERE s1<3) as x;
s1
2
select * from v1 left join v2 on (v1.s1=v2.s1);
s1 s1
2 2
3 NULL
select * from v1 left join t1 on (v1.s1=t1.s1);
s1 s1
2 2
3 3
select * from t1 left join v2 on (t1.s1=v2.s1);
s1 s1
-200 NULL
1 1
2 2
200 NULL
3 NULL
select * from v1 left join (SELECT s1 FROM t1 WHERE s1<3) as x on (v1.s1=x.s1);
s1 s1
2 2
3 NULL
select * from (SELECT s1 FROM t1 WHERE s1>1) AS x left join v2 on (x.s1=v2.s1);
s1 s1
2 2
200 NULL
3 NULL
drop view v1,v2;
CREATE algorithm=temptable VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
CREATE algorithm=temptable VIEW v2 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
> -100) as xx WHERE s1<3) AS x;
select * from t1;
s1
-200
1
2
200
3
select * from v1;
s1
2
3
select * from v2;
s1
1
2
select * from v1 natural join v2;
s1
2
select * from v1 natural join t1;
s1
2
3
select * from v1 natural join (SELECT s1 FROM t1 WHERE s1<3) as x;
s1
2
select * from v1 left join v2 on (v1.s1=v2.s1);
s1 s1
2 2
3 NULL
select * from v1 left join t1 on (v1.s1=t1.s1);
s1 s1
2 2
3 3
select * from t1 left join v2 on (t1.s1=v2.s1);
s1 s1
-200 NULL
1 1
2 2
200 NULL
3 NULL
select * from v1 left join (SELECT s1 FROM t1 WHERE s1<3) as x on (v1.s1=x.s1);
s1 s1
2 2
3 NULL
select * from (SELECT s1 FROM t1 WHERE s1>1) AS x left join v2 on (x.s1=v2.s1);
s1 s1
2 2
200 NULL
3 NULL
drop view v1,v2;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
insert into v1 values (-300);
ERROR HY000: The target table v1 of the INSERT is not insertable-into
update v1 set s1=s1+1;
ERROR HY000: The target table v1 of the UPDATE is not updatable
drop view v1;
CREATE VIEW v1 AS SELECT s1,s2 FROM (SELECT s1 as s2 FROM t1 WHERE s1 <
100) x, t1 WHERE t1.s1=x.s2;
select * from v1;
s1 s2
1 1
2 2
3 3
-200 -200
insert into v1 (s1) values (-300);
update v1 set s1=s1+1;
select * from v1;
s1 s2
2 2
3 3
4 4
-199 -199
-299 -299
select * from t1;
s1
2
3
4
200
-199
-299
insert into v1(s2) values (-300);
ERROR HY000: The target table v1 of the INSERT is not insertable-into
update v1 set s2=s2+1;
ERROR HY000: The target table v1 of the UPDATE is not updatable
drop view v1;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM t1 WHERE s1
< 100) AS x;
insert into v1 values (-300);
ERROR HY000: The target table v1 of the INSERT is not insertable-into
update v1 set s1=s1+1;
ERROR HY000: The target table v1 of the UPDATE is not updatable
drop view v1;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
insert into v1 values (-300);
ERROR HY000: The target table v1 of the INSERT is not insertable-into
update v1 set s1=s1+1;
ERROR HY000: The target table v1 of the UPDATE is not updatable
create view v2 as select * from v1;
insert into v2 values (-300);
ERROR HY000: The target table v2 of the INSERT is not insertable-into
update v2 set s1=s1+1;
ERROR HY000: The target table v2 of the UPDATE is not updatable
drop view v1, v2;
drop table t1;
#
# MDEV-9671:Wrong result upon select from a view with a FROM subquery
#
CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (3),(2);
CREATE TABLE t2 (j INT);
INSERT INTO t2 VALUES (8),(3),(3);
CREATE TABLE t3 (k INT);
INSERT INTO t3 VALUES (1),(8);
CREATE VIEW v1 AS SELECT * FROM t1 LEFT JOIN ( SELECT t2.* FROM t2 INNER JOIN t3 ON ( k = j ) ) AS alias1 ON ( i = j );
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `test`.`t1`.`i` AS `i`,`alias1`.`j` AS `j` from (`test`.`t1` left join (select `test`.`t2`.`j` AS `j` from (`test`.`t2` join `test`.`t3` on((`test`.`t3`.`k` = `test`.`t2`.`j`)))) `alias1` on((`test`.`t1`.`i` = `alias1`.`j`))) latin1 latin1_swedish_ci
SELECT * FROM t1 LEFT JOIN ( SELECT t2.* FROM t2 INNER JOIN t3 ON ( k = j ) ) AS alias1 ON ( i = j );
i j
3 NULL
2 NULL
SELECT * FROM v1;
i j
3 NULL
2 NULL
DROP VIEW v1;
DROP TABLE t1, t2, t3;
#
# End of 10.2 tests # End of 10.2 tests
# #

4
mysql-test/suite/funcs_1/r/innodb_views.result
View File

@@ -3503,7 +3503,7 @@ Select @x;
0 0
CREATE or REPLACE VIEW v1 AS Select 1 CREATE or REPLACE VIEW v1 AS Select 1
FROM (SELECT 1 FROM t1) my_table; FROM (SELECT 1 FROM t1) my_table;
ERROR HY000: View's SELECT contains a subquery in the FROM clause DROP VIEW v1;
CREATE VIEW v1 AS SELECT f1 FROM t1; CREATE VIEW v1 AS SELECT f1 FROM t1;
CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET @a:=1 ; CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET @a:=1 ;
SET @a:=0 ; SET @a:=0 ;
@@ -7535,7 +7535,7 @@ Testcase 3.3.1.39
Drop view if exists test.v1 ; Drop view if exists test.v1 ;
CREATE VIEW test.v1 CREATE VIEW test.v1
AS Select f59 from (Select * FROM tb2 limit 20) tx ; AS Select f59 from (Select * FROM tb2 limit 20) tx ;
ERROR HY000: View's SELECT contains a subquery in the FROM clause DROP VIEW test.v1;
SELECT * FROM test.v1 order by f59 ; SELECT * FROM test.v1 order by f59 ;
ERROR 42S02: Table 'test.v1' doesn't exist ERROR 42S02: Table 'test.v1' doesn't exist
Drop view if exists test.v1 ; Drop view if exists test.v1 ;

4
mysql-test/suite/funcs_1/r/memory_views.result
View File

@@ -3504,7 +3504,7 @@ Select @x;
0 0
CREATE or REPLACE VIEW v1 AS Select 1 CREATE or REPLACE VIEW v1 AS Select 1
FROM (SELECT 1 FROM t1) my_table; FROM (SELECT 1 FROM t1) my_table;
ERROR HY000: View's SELECT contains a subquery in the FROM clause DROP VIEW v1;
CREATE VIEW v1 AS SELECT f1 FROM t1; CREATE VIEW v1 AS SELECT f1 FROM t1;
CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET @a:=1 ; CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET @a:=1 ;
SET @a:=0 ; SET @a:=0 ;
@@ -7536,7 +7536,7 @@ Testcase 3.3.1.39
Drop view if exists test.v1 ; Drop view if exists test.v1 ;
CREATE VIEW test.v1 CREATE VIEW test.v1
AS Select f59 from (Select * FROM tb2 limit 20) tx ; AS Select f59 from (Select * FROM tb2 limit 20) tx ;
ERROR HY000: View's SELECT contains a subquery in the FROM clause DROP VIEW test.v1;
SELECT * FROM test.v1 order by f59 ; SELECT * FROM test.v1 order by f59 ;
ERROR 42S02: Table 'test.v1' doesn't exist ERROR 42S02: Table 'test.v1' doesn't exist
Drop view if exists test.v1 ; Drop view if exists test.v1 ;

4
mysql-test/suite/funcs_1/views/views_master.inc
View File

@@ -271,9 +271,9 @@ CREATE or REPLACE VIEW v1 AS Select 1 INTO @x;
Select @x; Select @x;
# Subquery in the FROM clause is illegal # Subquery in the FROM clause is illegal
--error ER_VIEW_SELECT_DERIVED
CREATE or REPLACE VIEW v1 AS Select 1 CREATE or REPLACE VIEW v1 AS Select 1
FROM (SELECT 1 FROM t1) my_table; FROM (SELECT 1 FROM t1) my_table;
DROP VIEW v1;
# Triggers cannot be associated with VIEWs # Triggers cannot be associated with VIEWs
CREATE VIEW v1 AS SELECT f1 FROM t1; CREATE VIEW v1 AS SELECT f1 FROM t1;
@@ -1557,9 +1557,9 @@ let $message= Testcase 3.3.1.39 ;
--disable_warnings --disable_warnings
Drop view if exists test.v1 ; Drop view if exists test.v1 ;
--enable_warnings --enable_warnings
--error ER_VIEW_SELECT_DERIVED
CREATE VIEW test.v1 CREATE VIEW test.v1
AS Select f59 from (Select * FROM tb2 limit 20) tx ; AS Select f59 from (Select * FROM tb2 limit 20) tx ;
DROP VIEW test.v1;
--error ER_NO_SUCH_TABLE --error ER_NO_SUCH_TABLE
SELECT * FROM test.v1 order by f59 ; SELECT * FROM test.v1 order by f59 ;
--disable_warnings --disable_warnings

4
mysql-test/t/sp-error.test
View File

@@ -1794,8 +1794,8 @@ CREATE PROCEDURE bug20953() CREATE VIEW v AS SELECT 1 INTO OUTFILE "file";
--error ER_PARSE_ERROR --error ER_PARSE_ERROR
CREATE PROCEDURE bug20953() CREATE PROCEDURE bug20953()
CREATE VIEW v AS SELECT i FROM t1 PROCEDURE ANALYSE(); CREATE VIEW v AS SELECT i FROM t1 PROCEDURE ANALYSE();
--error ER_VIEW_SELECT_DERIVED --error ER_PARSE_ERROR
CREATE PROCEDURE bug20953() CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d1; CREATE PROCEDURE bug20953() CREATE VIEW v AS SELECT 1 FROM (SELECT 1) AS d1 into @w;
--error ER_VIEW_SELECT_VARIABLE --error ER_VIEW_SELECT_VARIABLE
CREATE PROCEDURE bug20953(i INT) CREATE VIEW v AS SELECT i; CREATE PROCEDURE bug20953(i INT) CREATE VIEW v AS SELECT i;
delimiter |; delimiter |;

172
mysql-test/t/view.test
View File

@@ -847,8 +847,9 @@ create view v1 as select 5 into outfile 'ttt';
create table t1 (a int); create table t1 (a int);
-- error ER_PARSE_ERROR -- error ER_PARSE_ERROR
create view v1 as select a from t1 procedure analyse(); create view v1 as select a from t1 procedure analyse();
-- error ER_VIEW_SELECT_DERIVED # now derived tables are allowed
create view v1 as select 1 from (select 1) as d1; create view v1 as select 1 from (select 1) as d1;
drop view v1;
drop table t1; drop table t1;
# #
@@ -3173,10 +3174,10 @@ DROP TABLE t1;
DROP VIEW IF EXISTS v1; DROP VIEW IF EXISTS v1;
--enable_warnings --enable_warnings
let $query = SELECT * FROM (SELECT 1) AS t; let $query = SELECT * FROM (SELECT 1) AS t into @w;
eval $query; eval $query;
--error ER_VIEW_SELECT_DERIVED --error ER_PARSE_ERROR
eval CREATE VIEW v1 AS $query; eval CREATE VIEW v1 AS $query;
--echo # Previously the following would fail. --echo # Previously the following would fail.
eval $query; eval $query;
@@ -5784,7 +5785,172 @@ SHOW CREATE TABLE t3;
DROP VIEW v1; DROP VIEW v1;
DROP TABLE t1,t2,t3; DROP TABLE t1,t2,t3;
--echo #
--echo # MDEV-3944: Allow derived tables in VIEWS
--echo #
create table t1 (s1 int);
insert into t1 values (1),(2),(3);
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM t1 WHERE s1>1) AS x;
CREATE VIEW v2 AS SELECT * FROM (SELECT s1 FROM t1 WHERE s1<3) AS x;
--sorted_result
select * from v1;
--sorted_result
select * from v2;
--sorted_result
select * from v1 natural join v2;
--sorted_result
select * from v1 natural join t1;
--sorted_result
select * from v1 natural join (SELECT s1 FROM t1 WHERE s1<3) as x;
--sorted_result
select * from v1 left join v2 on (v1.s1=v2.s1);
--sorted_result
select * from v1 left join t1 on (v1.s1=t1.s1);
--sorted_result
select * from t1 left join v2 on (t1.s1=v2.s1);
--sorted_result
select * from v1 left join (SELECT s1 FROM t1 WHERE s1<3) as x on (v1.s1=x.s1);
--sorted_result
select * from (SELECT s1 FROM t1 WHERE s1>1) AS x left join v2 on (x.s1=v2.s1);
drop view v1,v2;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
CREATE VIEW v2 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
> -100) as xx WHERE s1<3) AS x;
insert into t1 values (200),(-200);
--sorted_result
select * from t1;
--sorted_result
select * from v1;
--sorted_result
select * from v2;
--sorted_result
select * from v1 natural join v2;
--sorted_result
select * from v1 natural join t1;
--sorted_result
select * from v1 natural join (SELECT s1 FROM t1 WHERE s1<3) as x;
--sorted_result
select * from v1 left join v2 on (v1.s1=v2.s1);
--sorted_result
select * from v1 left join t1 on (v1.s1=t1.s1);
--sorted_result
select * from t1 left join v2 on (t1.s1=v2.s1);
--sorted_result
select * from v1 left join (SELECT s1 FROM t1 WHERE s1<3) as x on (v1.s1=x.s1);
--sorted_result
select * from (SELECT s1 FROM t1 WHERE s1>1) AS x left join v2 on (x.s1=v2.s1);
drop view v1,v2;
CREATE algorithm=temptable VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
CREATE algorithm=temptable VIEW v2 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
> -100) as xx WHERE s1<3) AS x;
--sorted_result
select * from t1;
--sorted_result
select * from v1;
--sorted_result
select * from v2;
--sorted_result
select * from v1 natural join v2;
--sorted_result
select * from v1 natural join t1;
--sorted_result
select * from v1 natural join (SELECT s1 FROM t1 WHERE s1<3) as x;
--sorted_result
select * from v1 left join v2 on (v1.s1=v2.s1);
--sorted_result
select * from v1 left join t1 on (v1.s1=t1.s1);
--sorted_result
select * from t1 left join v2 on (t1.s1=v2.s1);
--sorted_result
select * from v1 left join (SELECT s1 FROM t1 WHERE s1<3) as x on (v1.s1=x.s1);
--sorted_result
select * from (SELECT s1 FROM t1 WHERE s1>1) AS x left join v2 on (x.s1=v2.s1);
drop view v1,v2;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
--error ER_NON_INSERTABLE_TABLE
insert into v1 values (-300);
--error ER_NON_UPDATABLE_TABLE
update v1 set s1=s1+1;
drop view v1;
CREATE VIEW v1 AS SELECT s1,s2 FROM (SELECT s1 as s2 FROM t1 WHERE s1 <
100) x, t1 WHERE t1.s1=x.s2;
select * from v1;
insert into v1 (s1) values (-300);
update v1 set s1=s1+1;
select * from v1;
select * from t1;
--error ER_NON_INSERTABLE_TABLE
insert into v1(s2) values (-300);
--error ER_NON_UPDATABLE_TABLE
update v1 set s2=s2+1;
drop view v1;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM t1 WHERE s1
< 100) AS x;
--error ER_NON_INSERTABLE_TABLE
insert into v1 values (-300);
--error ER_NON_UPDATABLE_TABLE
update v1 set s1=s1+1;
drop view v1;
CREATE VIEW v1 AS SELECT * FROM (SELECT s1 FROM (SELECT s1 FROM t1 WHERE s1
< 100) as xx WHERE s1>1) AS x;
--error ER_NON_INSERTABLE_TABLE
insert into v1 values (-300);
--error ER_NON_UPDATABLE_TABLE
update v1 set s1=s1+1;
create view v2 as select * from v1;
--error ER_NON_INSERTABLE_TABLE
insert into v2 values (-300);
--error ER_NON_UPDATABLE_TABLE
update v2 set s1=s1+1;
drop view v1, v2;
drop table t1;
--echo #
--echo # MDEV-9671:Wrong result upon select from a view with a FROM subquery
--echo #
CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (3),(2);
CREATE TABLE t2 (j INT);
INSERT INTO t2 VALUES (8),(3),(3);
CREATE TABLE t3 (k INT);
INSERT INTO t3 VALUES (1),(8);
CREATE VIEW v1 AS SELECT * FROM t1 LEFT JOIN ( SELECT t2.* FROM t2 INNER JOIN t3 ON ( k = j ) ) AS alias1 ON ( i = j );
show create view v1;
SELECT * FROM t1 LEFT JOIN ( SELECT t2.* FROM t2 INNER JOIN t3 ON ( k = j ) ) AS alias1 ON ( i = j );
SELECT * FROM v1;
DROP VIEW v1;
DROP TABLE t1, t2, t3;
--echo # --echo #
--echo # End of 10.2 tests --echo # End of 10.2 tests
--echo # --echo #

6
sql/sql_derived.cc
View File

@@ -567,7 +567,11 @@ bool mysql_derived_init(THD *thd, LEX *lex, TABLE_LIST *derived)
if (!unit || unit->prepared) if (!unit || unit->prepared)
DBUG_RETURN(FALSE); DBUG_RETURN(FALSE);
DBUG_RETURN(derived->init_derived(thd, TRUE)); bool res= derived->init_derived(thd, TRUE);
derived->updatable= derived->updatable && derived->is_view();
DBUG_RETURN(res);
} }

3
sql/sql_lex.cc
View File

@@ -232,7 +232,6 @@ void
st_parsing_options::reset() st_parsing_options::reset()
{ {
allows_variable= TRUE; allows_variable= TRUE;
allows_derived= TRUE;
} }
@@ -2951,7 +2950,7 @@ bool LEX::can_be_merged()
tmp_unit= tmp_unit->next_unit()) tmp_unit= tmp_unit->next_unit())
{ {
if (tmp_unit->first_select()->parent_lex == this && if (tmp_unit->first_select()->parent_lex == this &&
(tmp_unit->item == 0 || (tmp_unit->item != 0 &&
(tmp_unit->item->place() != IN_WHERE && (tmp_unit->item->place() != IN_WHERE &&
tmp_unit->item->place() != IN_ON && tmp_unit->item->place() != IN_ON &&
tmp_unit->item->place() != SELECT_LIST))) tmp_unit->item->place() != SELECT_LIST)))

1
sql/sql_lex.h
View File

@@ -1817,7 +1817,6 @@ private:
struct st_parsing_options struct st_parsing_options
{ {
bool allows_variable; bool allows_variable;
bool allows_derived;
st_parsing_options() { reset(); } st_parsing_options() { reset(); }
void reset(); void reset();

3
sql/sql_select.cc
View File

@@ -24541,7 +24541,8 @@ static void print_table_array(THD *thd,
continue; continue;
} }
if (curr->outer_join) /* JOIN_TYPE_OUTER is just a marker unrelated to real join */
if (curr->outer_join & (JOIN_TYPE_LEFT|JOIN_TYPE_RIGHT))
{ {
/* MySQL converts right to left joins */ /* MySQL converts right to left joins */
str->append(STRING_WITH_LEN(" left join ")); str->append(STRING_WITH_LEN(" left join "));

18
sql/sql_update.cc
View File

@@ -1234,10 +1234,8 @@ bool unsafe_key_update(List<TABLE_LIST> leaves, table_map tables_for_update)
{ {
// Partitioned key is updated // Partitioned key is updated
my_error(ER_MULTI_UPDATE_KEY_CONFLICT, MYF(0), my_error(ER_MULTI_UPDATE_KEY_CONFLICT, MYF(0),
tl->belong_to_view ? tl->belong_to_view->alias tl->top_table()->alias,
: tl->alias, tl2->top_table()->alias);
tl2->belong_to_view ? tl2->belong_to_view->alias
: tl2->alias);
return true; return true;
} }
@@ -1255,10 +1253,8 @@ bool unsafe_key_update(List<TABLE_LIST> leaves, table_map tables_for_update)
{ {
// Clustered primary key is updated // Clustered primary key is updated
my_error(ER_MULTI_UPDATE_KEY_CONFLICT, MYF(0), my_error(ER_MULTI_UPDATE_KEY_CONFLICT, MYF(0),
tl->belong_to_view ? tl->belong_to_view->alias tl->top_table()->alias,
: tl->alias, tl2->top_table()->alias);
tl2->belong_to_view ? tl2->belong_to_view->alias
: tl2->alias);
return true; return true;
} }
} }
@@ -1459,11 +1455,13 @@ int mysql_multi_update_prepare(THD *thd)
{ {
if (!tl->single_table_updatable() || check_key_in_view(thd, tl)) if (!tl->single_table_updatable() || check_key_in_view(thd, tl))
{ {
my_error(ER_NON_UPDATABLE_TABLE, MYF(0), tl->alias, "UPDATE"); my_error(ER_NON_UPDATABLE_TABLE, MYF(0),
tl->top_table()->alias, "UPDATE");
DBUG_RETURN(TRUE); DBUG_RETURN(TRUE);
} }
DBUG_PRINT("info",("setting table `%s` for update", tl->alias)); DBUG_PRINT("info",("setting table `%s` for update",
tl->top_table()->alias));
/* /*
If table will be updated we should not downgrade lock for it and If table will be updated we should not downgrade lock for it and
leave it as is. leave it as is.

7
sql/sql_yacc.yy
View File

@@ -11373,11 +11373,6 @@ get_select_lex_derived:
select_derived_init: select_derived_init:
{ {
LEX *lex= Lex; LEX *lex= Lex;
if (! lex->parsing_options.allows_derived)
{
my_error(ER_VIEW_SELECT_DERIVED, MYF(0));
MYSQL_YYABORT;
}
TABLE_LIST *embedding= lex->current_select->embedding; TABLE_LIST *embedding= lex->current_select->embedding;
$$= embedding && $$= embedding &&
@@ -16745,7 +16740,6 @@ view_select:
{ {
LEX *lex= Lex; LEX *lex= Lex;
lex->parsing_options.allows_variable= FALSE; lex->parsing_options.allows_variable= FALSE;
lex->parsing_options.allows_derived= FALSE;
lex->create_view_select.str= (char *) YYLIP->get_cpp_ptr(); lex->create_view_select.str= (char *) YYLIP->get_cpp_ptr();
} }
opt_with_clause query_expression_body_view view_check_option opt_with_clause query_expression_body_view view_check_option
@@ -16757,7 +16751,6 @@ view_select:
lex->create_view_select.str= (char *) create_view_select; lex->create_view_select.str= (char *) create_view_select;
trim_whitespace(thd->charset(), &lex->create_view_select); trim_whitespace(thd->charset(), &lex->create_view_select);
lex->parsing_options.allows_variable= TRUE; lex->parsing_options.allows_variable= TRUE;
lex->parsing_options.allows_derived= TRUE;
lex->current_select->set_with_clause($2); lex->current_select->set_with_clause($2);
} }
; ;

8
sql/table.cc
View File

@@ -4448,13 +4448,14 @@ bool TABLE_LIST::single_table_updatable()
{ {
if (!updatable) if (!updatable)
return false; return false;
if (view_tables && view_tables->elements == 1) if (view && view->select_lex.table_list.elements == 1)
{ {
/* /*
We need to check deeply only single table views. Multi-table views We need to check deeply only single table views. Multi-table views
will be turned to multi-table updates and then checked by leaf tables will be turned to multi-table updates and then checked by leaf tables
*/ */
return view_tables->head()->single_table_updatable(); return (((TABLE_LIST *)view->select_lex.table_list.first)->
single_table_updatable());
} }
return true; return true;
} }
@@ -5499,6 +5500,8 @@ const char *Field_iterator_table_ref::get_table_name()
{ {
if (table_ref->view) if (table_ref->view)
return table_ref->view_name.str; return table_ref->view_name.str;
if (table_ref->is_derived())
return table_ref->table->s->table_name.str;
else if (table_ref->is_natural_join) else if (table_ref->is_natural_join)
return natural_join_it.column_ref()->table_name(); return natural_join_it.column_ref()->table_name();
@@ -7259,6 +7262,7 @@ bool TABLE_LIST::init_derived(THD *thd, bool init_view)
/* A subquery might be forced to be materialized due to a side-effect. */ /* A subquery might be forced to be materialized due to a side-effect. */
if (!is_materialized_derived() && first_select->is_mergeable() && if (!is_materialized_derived() && first_select->is_mergeable() &&
optimizer_flag(thd, OPTIMIZER_SWITCH_DERIVED_MERGE) && optimizer_flag(thd, OPTIMIZER_SWITCH_DERIVED_MERGE) &&
!thd->lex->can_not_use_merged() &&
!(thd->lex->sql_command == SQLCOM_UPDATE_MULTI || !(thd->lex->sql_command == SQLCOM_UPDATE_MULTI ||
thd->lex->sql_command == SQLCOM_DELETE_MULTI)) thd->lex->sql_command == SQLCOM_DELETE_MULTI))
set_merged_derived(); set_merged_derived();