# # MDEV-11415 AVOID INTERMEDIATE COMMIT WHILE DOING # ALTER TABLE...ALGORITHM=COPY # CREATE TABLE t(a SERIAL, b INT, c INT, d INT) ENGINE=InnoDB; CREATE TABLE t1(a INT, b TEXT, c TEXT, FULLTEXT(b), FULLTEXT(c(3)), FULLTEXT(b,c)) ENGINE=InnoDB; BEGIN; COMMIT; SELECT COUNT(*) FROM t; COUNT(*) 999 UPDATE t SET b=a%7, c=a%11, d=a%13; INSERT INTO t1 VALUES(1, 'This is a first b column', 'This is a first c column'); INSERT INTO t1 VALUES(2, 'This is a second b column', 'This is a second c column'); INSERT INTO t1(a) VALUES(3); INSERT INTO t1 VALUES(4, 'This is a third b column', 'This is a third c column'); DELETE FROM t1 WHERE a = 2; SELECT * FROM t1 WHERE MATCH(b) AGAINST ('first'); a b c 1 This is a first b column This is a first c column SELECT * FROM t1 WHERE MATCH(c) AGAINST ('first'); a b c 1 This is a first b column This is a first c column SELECT * FROM t1 WHERE MATCH(b,c) AGAINST ('column'); a b c 1 This is a first b column This is a first c column 4 This is a third b column This is a third c column SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` int(11) DEFAULT NULL, `b` text DEFAULT NULL, `c` text DEFAULT NULL, FULLTEXT KEY `b` (`b`), FULLTEXT KEY `c` (`c`), FULLTEXT KEY `b_2` (`b`,`c`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci ALTER TABLE t1 FORCE, ALGORITHM=COPY; connect hang,localhost,root; SET DEBUG_SYNC='alter_table_copy_trans_commit SIGNAL hung WAIT_FOR ever'; # create 32 secondary indexes ALTER TABLE t ADD INDEX(b,c,d,a),ADD INDEX(b,c,a,d),ADD INDEX(b,a,c,d),ADD INDEX(b,a,d,c), ADD INDEX(b,d,a,c),ADD INDEX(b,d,c,a),ADD INDEX(a,b,c,d),ADD INDEX(a,b,d,c), ADD INDEX(a,c,b,d),ADD INDEX(a,c,d,b),ADD INDEX(a,d,b,c),ADD INDEX(a,d,c,b), ADD INDEX(c,a,b,d),ADD INDEX(c,a,d,b),ADD INDEX(c,b,a,d),ADD INDEX(c,b,d,a), ADD INDEX(c,d,a,b),ADD INDEX(c,d,b,a),ADD INDEX(d,a,b,c),ADD INDEX(d,a,c,b), ADD INDEX(d,b,a,c),ADD INDEX(d,b,c,a),ADD INDEX(d,c,a,b),ADD INDEX(d,c,b,a), ADD INDEX(a,b,c), ADD INDEX(a,c,b), ADD INDEX(a,c,d), ADD INDEX(a,d,c), ADD INDEX(a,b,d), ADD INDEX(a,d,b), ADD INDEX(b,c,d), ADD INDEX(b,d,c), ALGORITHM=COPY; connection default; SET DEBUG_SYNC='now WAIT_FOR hung'; # restart: --innodb-force-recovery=3 --debug_dbug=+d,recv_ran_out_of_buffer disconnect hang; FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTSBEING_DELETED.ibd FTSBEING_DELETED_CACHE.ibd FTSCONFIG.ibd FTSDELETED.ibd FTSDELETED_CACHE.ibd db.opt t.frm t.ibd t1.frm t1.ibd SHOW CREATE TABLE t; Table Create Table t CREATE TABLE `t` ( `a` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `b` int(11) DEFAULT NULL, `c` int(11) DEFAULT NULL, `d` int(11) DEFAULT NULL, UNIQUE KEY `a` (`a`) ) ENGINE=InnoDB AUTO_INCREMENT=1000 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT COUNT(*) FROM t; COUNT(*) 999 CHECK TABLE t; Table Op Msg_type Msg_text test.t check status OK SELECT * FROM t1 WHERE MATCH(b) AGAINST ('first'); a b c 1 This is a first b column This is a first c column SELECT * FROM t1 WHERE MATCH(c) AGAINST ('first'); a b c 1 This is a first b column This is a first c column SELECT * FROM t1 WHERE MATCH(b,c) AGAINST ('column'); a b c 1 This is a first b column This is a first c column 4 This is a third b column This is a third c column SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` int(11) DEFAULT NULL, `b` text DEFAULT NULL, `c` text DEFAULT NULL, FULLTEXT KEY `b` (`b`), FULLTEXT KEY `c` (`c`), FULLTEXT KEY `b_2` (`b`,`c`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci CHECK TABLE t1; Table Op Msg_type Msg_text test.t1 check status OK # restart: --innodb-read-only FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTSBEING_DELETED.ibd FTSBEING_DELETED_CACHE.ibd FTSCONFIG.ibd FTSDELETED.ibd FTSDELETED_CACHE.ibd db.opt t.frm t.ibd t1.frm t1.ibd SHOW CREATE TABLE t; Table Create Table t CREATE TABLE `t` ( `a` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `b` int(11) DEFAULT NULL, `c` int(11) DEFAULT NULL, `d` int(11) DEFAULT NULL, UNIQUE KEY `a` (`a`) ) ENGINE=InnoDB AUTO_INCREMENT=1000 DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT COUNT(*) FROM t; COUNT(*) 999 CHECK TABLE t; Table Op Msg_type Msg_text test.t check status OK SELECT * FROM t1 WHERE MATCH(b) AGAINST ('first'); a b c 1 This is a first b column This is a first c column SELECT * FROM t1 WHERE MATCH(c) AGAINST ('first'); a b c 1 This is a first b column This is a first c column SELECT * FROM t1 WHERE MATCH(b,c) AGAINST ('column'); a b c 1 This is a first b column This is a first c column 4 This is a third b column This is a third c column SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` int(11) DEFAULT NULL, `b` text DEFAULT NULL, `c` text DEFAULT NULL, FULLTEXT KEY `b` (`b`), FULLTEXT KEY `c` (`c`), FULLTEXT KEY `b_2` (`b`,`c`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci CHECK TABLE t1; Table Op Msg_type Msg_text test.t1 check status OK # restart FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTS_INDEX_1.ibd FTS_INDEX_2.ibd FTS_INDEX_3.ibd FTS_INDEX_4.ibd FTS_INDEX_5.ibd FTS_INDEX_6.ibd FTSBEING_DELETED.ibd FTSBEING_DELETED_CACHE.ibd FTSCONFIG.ibd FTSDELETED.ibd FTSDELETED_CACHE.ibd db.opt t.frm t.ibd t1.frm t1.ibd DROP TABLE t1,t;