mariadb/mysql-test/suite/innodb/t/innodb-virtual-columns.test

--source include/have_innodb.inc

#
# MDEV-7367: Updating a virtual column corrupts table which crashes server
#   MySQL table columns contains virtual columns but InnoDB table 
#   definition does not.
#
CREATE TABLE IF NOT EXISTS gso_grad_supr (
  term char(4) NOT NULL DEFAULT '',
  uw_id int(8) UNSIGNED NOT NULL DEFAULT 0,
  plan varchar(10) NOT NULL DEFAULT '',
  wdraw_rsn varchar(4) NOT NULL DEFAULT '',
  admit_term char(4) NOT NULL DEFAULT '',
  CONSTRAINT gso_grad_supr_pky PRIMARY KEY (uw_id, term) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `gso_grad_supr` VALUES ('1031',2,'CSM','','1009');
INSERT INTO `gso_grad_supr` VALUES ('1035',2,'CSM','ACAD','1009');

CREATE TABLE IF NOT EXISTS grad_degree (
  student_id int(8) UNSIGNED NOT NULL,
  plan varchar(10) NOT NULL,
  admit_term char(4) NOT NULL,
  wdraw_rsn varchar(4) NOT NULL DEFAULT '',
  ofis_deg_status varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed'
      ELSE 'Not Completed'
    END) VIRTUAL,
  deg_start_term char(4) NOT NULL DEFAULT '' COMMENT 'Educated guess at the beginning of the data', 
  deg_as_of_term char(4) NOT NULL COMMENT 'In most cases also end term', 
  CONSTRAINT grad_degree_stu_plan_admit_pky PRIMARY KEY (student_id, plan, admit_term)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

SHOW CREATE TABLE grad_degree;

CREATE INDEX grad_degree_wdraw_rsn_ndx ON grad_degree (wdraw_rsn);
CREATE INDEX grad_degree_as_of_term_ndx ON grad_degree (deg_as_of_term);

INSERT IGNORE grad_degree (
  student_id,
  plan,
  admit_term, 
  wdraw_rsn,
  deg_start_term, 
  deg_as_of_term
)
SELECT 
  ggs.uw_id AS c_student_id,
  ggs.plan,
  ggs.admit_term,
  ggs.wdraw_rsn,
  IF( (SELECT COUNT(*) FROM grad_degree AS gd WHERE gd.student_id = ggs.uw_id AND gd.admit_term = ggs.admit_term) > 0, ggs.term, ggs.admit_term ) AS c_deg_start_term, 
  ggs.term AS c_as_of_term 
FROM gso_grad_supr AS ggs
LEFT OUTER JOIN
  grad_degree AS gd
    ON ( gd.student_id = ggs.uw_id AND gd.plan = ggs.plan AND gd.admit_term = ggs.admit_term )
WHERE
  ggs.term = 1031 AND 
  gd.student_id IS NULL
;

UPDATE grad_degree AS gd 
INNER JOIN
  gso_grad_supr AS ggs 
    ON ( gd.student_id = ggs.uw_id AND gd.plan = ggs.plan AND gd.admit_term = ggs.admit_term )
SET 
  gd.wdraw_rsn = ggs.wdraw_rsn,
  gd.deg_as_of_term = 1035 
WHERE
  gd.wdraw_rsn NOT IN ('DCMP', 'TRDC') AND 
    ggs.term = 1035 
;

drop table grad_degree;

#
# Test with more virtual columns so that MySQL table has
# more columns than InnoDB and index definition is out
# of number of actual InnoDB columns.
#
CREATE TABLE IF NOT EXISTS grad_degree (
  student_id int(8) UNSIGNED NOT NULL,
  plan varchar(10) NOT NULL,
  admit_term char(4) NOT NULL,
  wdraw_rsn varchar(4) NOT NULL DEFAULT '',
  ofis_deg_status varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed'
      ELSE 'Not Completed'
    END) VIRTUAL,
  ofis_deg_status2 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress2'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed2'
      ELSE 'Not Completed2'
    END) VIRTUAL,
  ofis_deg_status3 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress3'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed3'
      ELSE 'Not Completed3'
    END) VIRTUAL,
  ofis_deg_status4 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress4'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed4'
      ELSE 'Not Completed4'
    END) VIRTUAL,
  ofis_deg_status5 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress5'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed5'
      ELSE 'Not Completed5'
    END) VIRTUAL,
  ofis_deg_status6 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress6'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed6'
      ELSE 'Not Completed6'
    END) VIRTUAL,
  ofis_deg_status7 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress7'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed7'
      ELSE 'Not Completed7'
    END) VIRTUAL,
  ofis_deg_status8 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress8'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed8'
      ELSE 'Not Completed8'
    END) VIRTUAL,
  deg_start_term char(4) NOT NULL DEFAULT '' COMMENT 'Educated guess at the beginning of the data', 
  deg_as_of_term char(4) NOT NULL COMMENT 'In most cases also end term', 
  CONSTRAINT grad_degree_stu_plan_admit_pky PRIMARY KEY (student_id, plan, admit_term)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

SHOW CREATE TABLE grad_degree;

CREATE INDEX grad_degree_wdraw_rsn_ndx ON grad_degree (wdraw_rsn);
CREATE INDEX grad_degree_as_of_term_ndx ON grad_degree (deg_as_of_term);

INSERT IGNORE grad_degree (
  student_id,
  plan,
  admit_term, 
  wdraw_rsn,
  deg_start_term, 
  deg_as_of_term
)
SELECT 
  ggs.uw_id AS c_student_id,
  ggs.plan,
  ggs.admit_term,
  ggs.wdraw_rsn,
  IF( (SELECT COUNT(*) FROM grad_degree AS gd WHERE gd.student_id = ggs.uw_id AND gd.admit_term = ggs.admit_term) > 0, ggs.term, ggs.admit_term ) AS c_deg_start_term, 
  ggs.term AS c_as_of_term 
FROM gso_grad_supr AS ggs
LEFT OUTER JOIN
  grad_degree AS gd
    ON ( gd.student_id = ggs.uw_id AND gd.plan = ggs.plan AND gd.admit_term = ggs.admit_term )
WHERE
  ggs.term = 1031 AND 
  gd.student_id IS NULL
;

UPDATE grad_degree AS gd 
INNER JOIN
  gso_grad_supr AS ggs 
    ON ( gd.student_id = ggs.uw_id AND gd.plan = ggs.plan AND gd.admit_term = ggs.admit_term )
SET 
  gd.wdraw_rsn = ggs.wdraw_rsn,
  gd.deg_as_of_term = 1035 
WHERE
  gd.wdraw_rsn NOT IN ('DCMP', 'TRDC') AND 
    ggs.term = 1035 
;

#
# Verify that indexes can be dropped
#
ALTER TABLE grad_degree DROP INDEX grad_degree_wdraw_rsn_ndx;

#
# Verify that we can drop columns
#
ALTER TABLE grad_degree DROP COLUMN deg_start_term;

SHOW CREATE TABLE grad_degree;

DROP TABLE grad_degree;

#
# Verify after dropping virtual columns
#
CREATE TABLE IF NOT EXISTS grad_degree (
  student_id int(8) UNSIGNED NOT NULL,
  plan varchar(10) NOT NULL,
  admit_term char(4) NOT NULL,
  wdraw_rsn varchar(4) NOT NULL DEFAULT '',
  ofis_deg_status varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed'
      ELSE 'Not Completed'
    END) VIRTUAL,
  ofis_deg_status2 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress2'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed2'
      ELSE 'Not Completed2'
    END) VIRTUAL,
  ofis_deg_status3 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress3'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed3'
      ELSE 'Not Completed3'
    END) VIRTUAL,
  ofis_deg_status4 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress4'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed4'
      ELSE 'Not Completed4'
    END) VIRTUAL,
  ofis_deg_status5 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress5'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed5'
      ELSE 'Not Completed5'
    END) VIRTUAL,
  ofis_deg_status6 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress6'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed6'
      ELSE 'Not Completed6'
    END) VIRTUAL,
  ofis_deg_status7 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress7'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed7'
      ELSE 'Not Completed7'
    END) VIRTUAL,
  ofis_deg_status8 varchar(15) AS (
    CASE
      WHEN wdraw_rsn = '' THEN 'In progress8'
      WHEN wdraw_rsn = 'DCMP' OR wdraw_rsn = 'TRDC' THEN 'Completed8'
      ELSE 'Not Completed8'
    END) VIRTUAL,
  deg_start_term char(4) NOT NULL DEFAULT '' COMMENT 'Educated guess at the beginning of the data', 
  deg_as_of_term char(4) NOT NULL COMMENT 'In most cases also end term', 
  CONSTRAINT grad_degree_stu_plan_admit_pky PRIMARY KEY (student_id, plan, admit_term)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

SHOW CREATE TABLE grad_degree;

CREATE INDEX grad_degree_wdraw_rsn_ndx ON grad_degree (wdraw_rsn);

ALTER TABLE grad_degree DROP COLUMN ofis_deg_status2, DROP COLUMN ofis_deg_status3,
DROP COLUMN ofis_deg_status4, DROP COLUMN ofis_deg_status5, DROP COLUMN ofis_deg_status6,
DROP COLUMN ofis_deg_status7, DROP COLUMN ofis_deg_status8;

CREATE INDEX grad_degree_as_of_term_ndx ON grad_degree (deg_as_of_term);

INSERT IGNORE grad_degree (
  student_id,
  plan,
  admit_term, 
  wdraw_rsn,
  deg_start_term, 
  deg_as_of_term
)
SELECT 
  ggs.uw_id AS c_student_id,
  ggs.plan,
  ggs.admit_term,
  ggs.wdraw_rsn,
  IF( (SELECT COUNT(*) FROM grad_degree AS gd WHERE gd.student_id = ggs.uw_id AND gd.admit_term = ggs.admit_term) > 0, ggs.term, ggs.admit_term ) AS c_deg_start_term, 
  ggs.term AS c_as_of_term 
FROM gso_grad_supr AS ggs
LEFT OUTER JOIN
  grad_degree AS gd
    ON ( gd.student_id = ggs.uw_id AND gd.plan = ggs.plan AND gd.admit_term = ggs.admit_term )
WHERE
  ggs.term = 1031 AND 
  gd.student_id IS NULL
;

UPDATE grad_degree AS gd 
INNER JOIN
  gso_grad_supr AS ggs 
    ON ( gd.student_id = ggs.uw_id AND gd.plan = ggs.plan AND gd.admit_term = ggs.admit_term )
SET 
  gd.wdraw_rsn = ggs.wdraw_rsn,
  gd.deg_as_of_term = 1035 
WHERE
  gd.wdraw_rsn NOT IN ('DCMP', 'TRDC') AND 
    ggs.term = 1035 
;

select * from grad_degree;
select * from gso_grad_supr;

drop table grad_degree;
drop table gso_grad_supr;

CREATE TABLE t1 (a INT, b CHAR(12), c INT AS (a) VIRTUAL, FULLTEXT KEY(b)) ENGINE=InnoDB;
INSERT INTO t1 (a,b) VALUES (1,'foo');
SELECT * FROM t1;
DROP TABLE t1;

CREATE TABLE t1 (a INT, b CHAR(12), c INT AS (a) VIRTUAL) ENGINE=InnoDB;
INSERT INTO t1 (a,b) VALUES (1,'foo');
ALTER TABLE t1 ADD FULLTEXT KEY(b);
SELECT * FROM t1;
DROP TABLE t1;