mariadb/mysql-test/suite/innodb/t/stored_fk.test
Sergei Golubchik da09ae05a9 MDEV-18114 Foreign Key Constraint actions don't affect Virtual Column
* invoke check_expression() for all vcol_info's in
  mysql_prepare_create_table() to check for FK CASCADE
* also check for SET NULL and SET DEFAULT
* to check against existing FKs when a vcol is added in ALTER TABLE,
  old FKs must be added to the new_key_list just like other indexes are
* check columns recursively, if vcol1 references vcol2,
  flags of vcol2 must be taken into account
* remove check_table_name_processor(), put that logic under
  check_vcol_func_processor() to avoid walking the tree twice
2023-08-02 14:45:31 +02:00

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--source include/have_innodb.inc
create table t1(f1 int primary key) engine=innodb;
--echo # Create statement with FK on base column of stored column
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
create table t2(f1 int not null, f2 int as (f1) stored,
foreign key(f1) references t1(f1) on update cascade)engine=innodb;
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
create table t2(f1 int not null, f2 int as (f1) virtual, f3 int as (f2) stored,
foreign key(f1) references t1(f1) on update cascade)engine=innodb;
--echo # adding new stored column during alter table copy operation.
create table t2(f1 int not null, f2 int as (f1) virtual,
foreign key(f1) references t1(f1) on update cascade)engine=innodb;
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
alter table t2 add column f3 int as (f1) stored, add column f4 int as (f1) virtual;
show create table t2;
drop table t2;
--echo # adding foreign key constraint for base columns during alter copy.
create table t2(f1 int not null, f2 int as (f1) stored) engine=innodb;
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
alter table t2 add foreign key(f1) references t1(f1) on update cascade, algorithm=copy;
show create table t2;
drop table t2;
--echo # adding foreign key constraint for base columns during online alter.
create table t2(f1 int not null, f2 int as (f1) stored) engine=innodb;
set foreign_key_checks = 0;
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
alter table t2 add foreign key(f1) references t1(f1) on update cascade, algorithm=inplace;
drop table t2;
--echo # adding stored column via online alter.
create table t2(f1 int not null,
foreign key(f1) references t1(f1) on update cascade)engine=innodb;
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
alter table t2 add column f2 int as (f1) stored, algorithm=inplace;
drop table t2, t1;
--echo #
--echo # BUG#26731689 FK ON TABLE WITH GENERATED COLS: ASSERTION POS < N_DEF
--echo #
CREATE TABLE s (a INT, b INT GENERATED ALWAYS AS (0) STORED, c INT,
d INT GENERATED ALWAYS AS (0) VIRTUAL, e INT) ENGINE=innodb;
CREATE TABLE t (a INT) ENGINE=innodb;
# This would fail. No corresponding index
--error ER_FK_NO_INDEX_PARENT
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (e) REFERENCES t(a) ON UPDATE SET null;
ALTER TABLE t ADD PRIMARY KEY(a);
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (e) REFERENCES t(a) ON UPDATE SET null;
DROP TABLE s,t;
CREATE TABLE s (a INT GENERATED ALWAYS AS (0) VIRTUAL,
b INT GENERATED ALWAYS AS (0) STORED, c INT) ENGINE=innodb;
CREATE TABLE t (a INT) ENGINE=innodb;
# This would fail. No corresponding index
--error ER_FK_NO_INDEX_PARENT
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (c) REFERENCES t(a) ON UPDATE SET null;
ALTER TABLE t ADD PRIMARY KEY(a);
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (c) REFERENCES t(a) ON UPDATE SET null;
DROP TABLE s,t;
CREATE TABLE s (a INT, b INT GENERATED ALWAYS AS (0) STORED) ENGINE=innodb;
CREATE TABLE t (a INT PRIMARY KEY) ENGINE=innodb;
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (a) REFERENCES t(a) ON UPDATE SET null;
DROP TABLE s,t;
CREATE TABLE s (a INT, b INT) ENGINE=innodb;
CREATE TABLE t (a INT) ENGINE=innodb;
# This would fail. No corresponding index
--error ER_FK_NO_INDEX_PARENT
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (a) REFERENCES t(a) ON UPDATE SET null;
ALTER TABLE t ADD PRIMARY KEY(a);
ALTER TABLE s ADD CONSTRAINT c FOREIGN KEY (a) REFERENCES t(a) ON UPDATE SET null;
DROP TABLE s,t;