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MDEV-39522 Query with UNION fails in Oracle sql_mode with ER_BAD_FIELD_ERROR/ER_UNKNOWN_TABLE #5461

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Merged
forkfun merged 1 commit into from
Jul 27, 2026
Merged

MDEV-39522 Query with UNION fails in Oracle sql_mode with ER_BAD_FIELD_ERROR/ER_UNKNOWN_TABLE #5461

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29 changes: 13 additions & 16 deletions mysql-test/main/intersect_all.result
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1023,13 +1023,12 @@ NULL UNION RESULT <union1,4> ALL NULL NULL NULL NULL NULL
set sql_mode= 'oracle';
explain SELECT * from t3 union select * from u3 intersect all select * from i3;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2
4 DERIVED <derived2> ALL NULL NULL NULL NULL 2
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL
5 INTERSECT NULL NULL NULL NULL NULL NULL NULL no matching row in const table
NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL
4 INTERSECT i3 system NULL NULL NULL NULL 0 Const row not found
NULL INTERSECT RESULT <intersect1,4> ALL NULL NULL NULL NULL NULL
select x from t3 union select x from u3 intersect select x from i3;
x
SELECT x from t3 union select x from u3 intersect all select x from i3;
Expand Down Expand Up @@ -1153,23 +1152,22 @@ a b
2 3
explain select * from t1 intersect all select * from t2 union values (1, 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived4> ALL NULL NULL NULL NULL 8
4 DERIVED <derived2> ALL NULL NULL NULL NULL 7
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 7
2 DERIVED t1 ALL NULL NULL NULL NULL 7
3 INTERSECT t2 ALL NULL NULL NULL NULL 7
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL
5 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union4,5> ALL NULL NULL NULL NULL NULL
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union1,4> ALL NULL NULL NULL NULL NULL
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE VIEW "v1" AS select "__6"."a" AS "a","__6"."b" AS "b" from (select "__4"."a" AS "a","__4"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" intersect all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__4" union values (1,2)) "__6" latin1 latin1_swedish_ci
v1 CREATE VIEW "v1" AS select "__5"."a" AS "a","__5"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" intersect all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__5" union values (1,2) latin1 latin1_swedish_ci
select * from v1;
a b
1 2
2 3
show create view v2;
View Create View character_set_client collation_connection
v2 CREATE VIEW "v2" AS select "__7"."a" AS "a","__7"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" union select "__5"."1" AS "1","__5"."2" AS "2" from (select "__6"."1" AS "1","__6"."2" AS "2" from (values (1,2) intersect all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__6") "__5") "__7" latin1 latin1_swedish_ci
v2 CREATE VIEW "v2" AS select "t1"."a" AS "a","t1"."b" AS "b" from "t1" union select "__5"."1" AS "1","__5"."2" AS "2" from (values (1,2) intersect all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__5" latin1 latin1_swedish_ci
select * from v2;
a b
1 2
Expand All @@ -1178,7 +1176,7 @@ a b
create view v3 as select * from t1 union values (1, 2) intersect all select * from t2;
show create view v3;
View Create View character_set_client collation_connection
v3 CREATE VIEW "v3" AS select "__6"."a" AS "a","__6"."b" AS "b" from (select "__8"."a" AS "a","__8"."b" AS "b" from (select "__4"."a" AS "a","__4"."b" AS "b" from (select "__6"."a" AS "a","__6"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" union values (1,2)) "__6") "__4" intersect all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__8") "__6" latin1 latin1_swedish_ci
v3 CREATE VIEW "v3" AS select "__5"."a" AS "a","__5"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" union values (1,2)) "__5" intersect all select "t2"."a" AS "a","t2"."b" AS "b" from "t2" latin1 latin1_swedish_ci
select * from v3;
a b
1 2
Expand Down Expand Up @@ -1255,20 +1253,19 @@ set sql_mode= 'oracle';
create view v2 as select * from t1 except all select * from t2 intersect all values (1, 2);
show create view v2;
View Create View character_set_client collation_connection
v2 CREATE VIEW "v2" AS select "__6"."a" AS "a","__6"."b" AS "b" from (select "__8"."a" AS "a","__8"."b" AS "b" from (select "__4"."a" AS "a","__4"."b" AS "b" from (select "__6"."a" AS "a","__6"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" except all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__6") "__4" intersect all values (1,2)) "__8") "__6" latin1 latin1_swedish_ci
v2 CREATE VIEW "v2" AS select "__5"."a" AS "a","__5"."b" AS "b" from (select "t1"."a" AS "a","t1"."b" AS "b" from "t1" except all select "t2"."a" AS "a","t2"."b" AS "b" from "t2") "__5" intersect all values (1,2) latin1 latin1_swedish_ci
select * from v2;
a b
1 2
drop view v2;
EXPLAIN select * from t1 except all select * from t2 intersect all values (1, 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2
4 DERIVED <derived2> ALL NULL NULL NULL NULL 4
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4
2 DERIVED t1 ALL NULL NULL NULL NULL 4
3 EXCEPT t2 ALL NULL NULL NULL NULL 2
NULL EXCEPT RESULT <except2,3> ALL NULL NULL NULL NULL NULL
5 INTERSECT NULL NULL NULL NULL NULL NULL NULL No tables used
NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL
4 INTERSECT NULL NULL NULL NULL NULL NULL NULL No tables used
NULL INTERSECT RESULT <intersect1,4> ALL NULL NULL NULL NULL NULL
select * from t2 union all select * from t2;
a b
1 2
Expand Down
110 changes: 66 additions & 44 deletions mysql-test/main/set_operation_oracle.result
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,18 +12,17 @@ a b
explain extended
(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived6> ALL NULL NULL NULL NULL 2 100.00
6 DERIVED <derived4> ALL NULL NULL NULL NULL 2 100.00
4 DERIVED <derived2> ALL NULL NULL NULL NULL 4 100.00
1 PRIMARY <derived5> ALL NULL NULL NULL NULL 2 100.00
5 DERIVED <derived2> ALL NULL NULL NULL NULL 4 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00
3 UNION t2 ALL NULL NULL NULL NULL 2 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
5 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL NULL
7 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union6,7> ALL NULL NULL NULL NULL NULL NULL
4 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect5,4> ALL NULL NULL NULL NULL NULL NULL
6 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union1,6> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 /* select#1 */ select "__7"."a" AS "a","__7"."b" AS "b" from (/* select#6 */ select "__5"."a" AS "a","__5"."b" AS "b" from (/* select#4 */ select "__3"."a" AS "a","__3"."b" AS "b" from ((/* select#2 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1") union (/* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2")) "__3" intersect (/* select#5 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3")) "__5" union (/* select#7 */ select 4 AS "4",4 AS "4")) "__7"
Note 1003 /* select#1 */ select "__6"."a" AS "a","__6"."b" AS "b" from (/* select#5 */ select "__4"."a" AS "a","__4"."b" AS "b" from ((/* select#2 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1") union (/* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2")) "__4" intersect (/* select#4 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3")) "__6" union (/* select#6 */ select 4 AS "4",4 AS "4")
(select e,f from t3) intersect (select c,d from t2) union (select a,b from t1) union (select 4,4);
e f
3 3
Expand All @@ -33,18 +32,15 @@ e f
explain extended
(select e,f from t3) intersect (select c,d from t2) union (select a,b from t1) union (select 4,4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived6> ALL NULL NULL NULL NULL 4 100.00
6 DERIVED <derived4> ALL NULL NULL NULL NULL 4 100.00
4 DERIVED <derived2> ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED t3 ALL NULL NULL NULL NULL 2 100.00
3 INTERSECT t2 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
5 UNION t1 ALL NULL NULL NULL NULL 2 100.00
NULL UNION RESULT <union4,5> ALL NULL NULL NULL NULL NULL NULL
7 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union6,7> ALL NULL NULL NULL NULL NULL NULL
4 UNION t1 ALL NULL NULL NULL NULL 2 100.00
5 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union1,4,5> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 /* select#1 */ select "__7"."e" AS "e","__7"."f" AS "f" from (/* select#6 */ select "__5"."e" AS "e","__5"."f" AS "f" from (/* select#4 */ select "__3"."e" AS "e","__3"."f" AS "f" from ((/* select#2 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3") intersect (/* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2")) "__3" union (/* select#5 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1")) "__5" union (/* select#7 */ select 4 AS "4",4 AS "4")) "__7"
Note 1003 /* select#1 */ select "__4"."e" AS "e","__4"."f" AS "f" from ((/* select#2 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3") intersect (/* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2")) "__4" union (/* select#4 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1") union (/* select#5 */ select 4 AS "4",4 AS "4")
create table t12(c1 int);
insert into t12 values(1);
insert into t12 values(2);
Expand Down Expand Up @@ -76,33 +72,31 @@ a b
explain extended
select a,b from t1 union all select c,d from t2 intersect select e,f from t3 union all select 4,'4' from dual;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived6> ALL NULL NULL NULL NULL 2 100.00
6 DERIVED <derived4> ALL NULL NULL NULL NULL 2 100.00
4 DERIVED <derived2> ALL NULL NULL NULL NULL 4 100.00
1 PRIMARY <derived5> ALL NULL NULL NULL NULL 2 100.00
5 DERIVED <derived2> ALL NULL NULL NULL NULL 4 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00
3 UNION t2 ALL NULL NULL NULL NULL 2 100.00
5 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL NULL
7 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
4 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect5,4> ALL NULL NULL NULL NULL NULL NULL
6 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 /* select#1 */ select "__7"."a" AS "a","__7"."b" AS "b" from (/* select#6 */ select "__5"."a" AS "a","__5"."b" AS "b" from (/* select#4 */ select "__3"."a" AS "a","__3"."b" AS "b" from (/* select#2 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1" union all /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__3" intersect /* select#5 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3") "__5" union all /* select#7 */ select 4 AS "4",'4' AS "4") "__7"
Note 1003 /* select#1 */ select "__6"."a" AS "a","__6"."b" AS "b" from (/* select#5 */ select "__4"."a" AS "a","__4"."b" AS "b" from (/* select#2 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1" union all /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__4" intersect /* select#4 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3") "__6" union all /* select#6 */ select 4 AS "4",'4' AS "4"
select a,b from t1 union all select c,d from t2 intersect all select e,f from t3 union all select 4,'4' from dual;
a b
3 3
4 4
explain extended
select a,b from t1 union all select c,d from t2 intersect all select e,f from t3 union all select 4,'4' from dual;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived6> ALL NULL NULL NULL NULL 2 100.00
6 DERIVED <derived4> ALL NULL NULL NULL NULL 2 100.00
4 DERIVED <derived2> ALL NULL NULL NULL NULL 4 100.00
1 PRIMARY <derived5> ALL NULL NULL NULL NULL 2 100.00
5 DERIVED <derived2> ALL NULL NULL NULL NULL 4 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00
3 UNION t2 ALL NULL NULL NULL NULL 2 100.00
5 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect4,5> ALL NULL NULL NULL NULL NULL NULL
7 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
4 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect5,4> ALL NULL NULL NULL NULL NULL NULL
6 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 /* select#1 */ select "__7"."a" AS "a","__7"."b" AS "b" from (/* select#6 */ select "__5"."a" AS "a","__5"."b" AS "b" from (/* select#4 */ select "__3"."a" AS "a","__3"."b" AS "b" from (/* select#2 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1" union all /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__3" intersect all /* select#5 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3") "__5" union all /* select#7 */ select 4 AS "4",'4' AS "4") "__7"
Note 1003 /* select#1 */ select "__6"."a" AS "a","__6"."b" AS "b" from (/* select#5 */ select "__4"."a" AS "a","__4"."b" AS "b" from (/* select#2 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1" union all /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__4" intersect all /* select#4 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3") "__6" union all /* select#6 */ select 4 AS "4",'4' AS "4"
select e,f from t3 intersect select c,d from t2 union all select a,b from t1 union all select 4,'4' from dual;
e f
3 3
Expand All @@ -112,16 +106,14 @@ e f
explain extended
select e,f from t3 intersect select c,d from t2 union all select a,b from t1 union all select 4,'4' from dual;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived6> ALL NULL NULL NULL NULL 4 100.00
6 DERIVED <derived4> ALL NULL NULL NULL NULL 4 100.00
4 DERIVED <derived2> ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED t3 ALL NULL NULL NULL NULL 2 100.00
3 INTERSECT t2 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
5 UNION t1 ALL NULL NULL NULL NULL 2 100.00
7 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
4 UNION t1 ALL NULL NULL NULL NULL 2 100.00
5 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 /* select#1 */ select "__7"."e" AS "e","__7"."f" AS "f" from (/* select#6 */ select "__5"."e" AS "e","__5"."f" AS "f" from (/* select#4 */ select "__3"."e" AS "e","__3"."f" AS "f" from (/* select#2 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3" intersect /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__3" union all /* select#5 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1") "__5" union all /* select#7 */ select 4 AS "4",'4' AS "4") "__7"
Note 1003 /* select#1 */ select "__4"."e" AS "e","__4"."f" AS "f" from (/* select#2 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3" intersect /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__4" union all /* select#4 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1" union all /* select#5 */ select 4 AS "4",'4' AS "4"
select e,f from t3 intersect all select c,d from t2 union all select a,b from t1 union all select 4,'4' from dual;
e f
3 3
Expand All @@ -131,16 +123,14 @@ e f
explain extended
select e,f from t3 intersect all select c,d from t2 union all select a,b from t1 union all select 4,'4' from dual;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived6> ALL NULL NULL NULL NULL 4 100.00
6 DERIVED <derived4> ALL NULL NULL NULL NULL 4 100.00
4 DERIVED <derived2> ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED t3 ALL NULL NULL NULL NULL 2 100.00
3 INTERSECT t2 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
5 UNION t1 ALL NULL NULL NULL NULL 2 100.00
7 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
4 UNION t1 ALL NULL NULL NULL NULL 2 100.00
5 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 /* select#1 */ select "__7"."e" AS "e","__7"."f" AS "f" from (/* select#6 */ select "__5"."e" AS "e","__5"."f" AS "f" from (/* select#4 */ select "__3"."e" AS "e","__3"."f" AS "f" from (/* select#2 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3" intersect all /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__3" union all /* select#5 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1") "__5" union all /* select#7 */ select 4 AS "4",'4' AS "4") "__7"
Note 1003 /* select#1 */ select "__4"."e" AS "e","__4"."f" AS "f" from (/* select#2 */ select "test"."t3"."e" AS "e","test"."t3"."f" AS "f" from "test"."t3" intersect all /* select#3 */ select "test"."t2"."c" AS "c","test"."t2"."d" AS "d" from "test"."t2") "__4" union all /* select#4 */ select "test"."t1"."a" AS "a","test"."t1"."b" AS "b" from "test"."t1" union all /* select#5 */ select 4 AS "4",'4' AS "4"
set SQL_MODE=default;
drop table t1,t2,t3;
set SQL_MODE=oracle;
Expand Down Expand Up @@ -174,10 +164,10 @@ bar
set sql_mode=oracle;
show create view v;
View Create View character_set_client collation_connection
v CREATE VIEW "v" AS select "__4"."a" AS "a" from (select 'foo' AS "a" union select 'bar' AS "a") "__4" latin1 latin1_swedish_ci
v CREATE VIEW "v" AS select 'foo' AS "a" union select 'bar' AS "a" latin1 latin1_swedish_ci
show create view v2;
View Create View character_set_client collation_connection
v2 CREATE VIEW "v2" AS select "__4"."a" AS "a","__4"."b" AS "b" from (select 'foo' AS "a",'baz' AS "b" union select 'bar' AS "a",'qux' AS "b") "__4" latin1 latin1_swedish_ci
v2 CREATE VIEW "v2" AS select 'foo' AS "a",'baz' AS "b" union select 'bar' AS "a",'qux' AS "b" latin1 latin1_swedish_ci
select a from v;
a
foo
Expand All @@ -199,4 +189,36 @@ drop view v2;
drop view v3;
drop view v4;
set sql_mode=default;
#
# MDEV-39522 Query with UNION fails in Oracle sql_mode with ER_BAD_FIELD_ERROR/ER_UNKNOWN_TABLE
#
set sql_mode='oracle';
create table t1 (id varchar(10));
select 1 from t1 where exists (select 1 from dual union select 1 from dual where t1.id=1);
1
drop table t1;
set sql_mode=default;
# ansi: 1 union (2 intersect 2) = {1,2}
select 1 a union select 2 intersect select 2;
a
1
2
set sql_mode='oracle';
# oracle: (1 union 2) intersect 2 = {2}
select 1 a union select 2 intersect select 2;
a
2
# recursive CTE with set operator wraps nothing (anchor preserved)
with recursive c(n) as
(
select 1 from dual
union all
select n+1 from c where n < 3
)
select * from c;
n
1
2
3
set sql_mode=default;
# End of 10.11 tests
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