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--source include/have_innodb.inc --source include/count_sessions.inc --echo # --echo # Bug#21869656 UNDO LOG DOES NOT CONTAIN ENOUGH INFORMATION --echo # ON INDEXED VIRTUAL COLUMNS --echo # CREATE TABLE t1 (a INT, b INT, a1 INT GENERATED ALWAYS AS (a) VIRTUAL, INDEX(a1) ) ENGINE=InnoDB; INSERT INTO t1 (a,b) VALUES(1,1); connect (con1,localhost,root,,); # disable purge CREATE TABLE t0 (a INT) ENGINE=InnoDB; BEGIN; SELECT * FROM t0; connection default; # write the problematic update_undo log record UPDATE t1 SET a=0; ALTER TABLE t1 DROP COLUMN a1, ALGORITHM=INPLACE; ALTER TABLE t1 ADD COLUMN b1 INT GENERATED ALWAYS AS (b) VIRTUAL, ADD INDEX(b1), ALGORITHM=INPLACE; connection con1; # enable purge COMMIT; UPDATE t1 SET a=1; connection default; # wait for purge to process the update_undo record. --source include/wait_innodb_all_purged.inc CHECK TABLE t1; SELECT b1 FROM t1; # Create multi-virtual column, more ADD/DROP to test it ALTER TABLE t1 ADD COLUMN a1 INT GENERATED ALWAYS AS (a) VIRTUAL, ADD COLUMN a2 INT GENERATED ALWAYS AS (a + b) VIRTUAL, ADD COLUMN a3 INT GENERATED ALWAYS AS (a - b) VIRTUAL, ADD COLUMN a4 INT GENERATED ALWAYS AS (a - b) VIRTUAL, ADD INDEX(a1), ADD INDEX(a2), ADD INDEX(a3), ALGORITHM=INPLACE; CREATE TABLE t2 ( a BLOB, b BLOB, c BLOB GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL, h VARCHAR(10) DEFAULT NULL ) ENGINE=InnoDB; INSERT INTO t2 VALUES (REPEAT('g', 16000), REPEAT('x', 16000), DEFAULT, 'kk'); INSERT INTO t2 VALUES (REPEAT('a', 16000), REPEAT('b', 16000), DEFAULT, 'mm'); CREATE INDEX idx ON t2(c(100)); INSERT INTO t1 (a, b) VALUES(1,1); connection con1; # disable purge BEGIN; SELECT * FROM t0; connection default; --enable_info # write the problematic update_undo log record UPDATE t1 SET a=0; UPDATE t1 SET b=0; ALTER TABLE t1 DROP COLUMN a3, ALGORITHM=INPLACE; UPDATE t1 SET a=2; ALTER TABLE t1 DROP COLUMN a2, ALGORITHM=INPLACE; UPDATE t1 SET b=3; ALTER TABLE t1 ADD COLUMN b2 INT GENERATED ALWAYS AS (b) VIRTUAL, ADD INDEX(b2), ALGORITHM=INPLACE; UPDATE t1 SET b=9; ALTER TABLE t1 ADD COLUMN b3 INT GENERATED ALWAYS AS (a) VIRTUAL, ADD INDEX(b3), ALGORITHM=INPLACE; UPDATE t1 SET b=10; ALTER TABLE t2 DROP COLUMN c; UPDATE t2 SET a = REPEAT('s', 6000) WHERE a like 'aaa%'; ALTER TABLE t2 ADD COLUMN x1 BLOB GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL, ADD COLUMN x2 BLOB GENERATED ALWAYS AS (CONCAT(a,b)) VIRTUAL, ADD INDEX(x1(100), x2(120)), ADD INDEX (x1(20)); UPDATE t1 SET a=5; UPDATE t2 SET a = REPEAT('m', 16000) WHERE a like 'sss%'; ALTER TABLE t1 DROP COLUMN b2, ALGORITHM=INPLACE; UPDATE t1 SET a=6; ALTER TABLE t2 DROP COLUMN x1, DROP COLUMN x2, ALGORITHM=INPLACE; UPDATE t2 SET a = REPEAT('x', 1000) WHERE a like 'mmm%'; ALTER TABLE t1 DROP INDEX b3; UPDATE t1 SET a=100; --disable_info connection con1; # enable purge COMMIT; disconnect con1; connection default; # wait for purge to process the update_undo record. --source include/wait_innodb_all_purged.inc CHECK TABLE t1; SELECT b1 FROM t1; SELECT * FROM t1; CHECK TABLE t2; DROP TABLE t2, t1, t0; CREATE TABLE t1 (a VARCHAR(30), b INT, a2 VARCHAR(30) GENERATED ALWAYS AS (a) VIRTUAL); --error ER_DUP_FIELDNAME CREATE INDEX idx ON t1(a2(10), b, a2(20)); DROP TABLE t1; --source include/wait_until_count_sessions.inc