CREATE TABLE t1 ( id INT AUTO_INCREMENT NOT NULL PRIMARY KEY, value VARCHAR(1024) ) ENGINE=InnoDB; CREATE FULLTEXT INDEX idx1 ON t1(value); SET @save_debug = @@GLOBAL.debug_dbug; SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_sync_before_syncing,ib_trunc_sleep_before_fts_cache_clear'; INSERT INTO t1 (value) VALUES ('By default or with the IN NATURAL LANGUAGE MODE modifier') ; TRUNCATE TABLE t1; DROP TABLE t1; SET GLOBAL debug_dbug = @save_debug; CREATE TABLE t1 ( id INT AUTO_INCREMENT NOT NULL PRIMARY KEY, value VARCHAR(1024) ) ENGINE=InnoDB; CREATE FULLTEXT INDEX idx1 ON t1(value); SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_write_words_before_select_index,ib_trunc_sleep_before_fts_cache_clear'; INSERT INTO t1 (value) VALUES ('By default or with the IN NATURAL LANGUAGE MODE modifier'), ('performs a natural language search for a string'), ('collection is a set of one or more columns included'), ('returns a relevance value; that is, a similarity measure'), ('and the text in that row in the columns named in'), ('By default, the search is performed in case-insensitive'), ('sensitive full-text search, use a binary collation '), ('example, a column that uses the latin1 character'), ('collation of latin1_bin to make it case sensitive') ; TRUNCATE TABLE t1; DROP TABLE t1; SET GLOBAL debug_dbug = @save_debug; CREATE TABLE t1 ( value VARCHAR(1024) ) ENGINE=InnoDB; CREATE FULLTEXT INDEX idx1 ON t1(value); SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep'; INSERT INTO t1 (value) VALUES ('By default or with the IN NATURAL LANGUAGE MODE modifier'), ('performs a natural language search for a string'), ('collection is a set of one or more columns included'), ('returns a relevance value; that is, a similarity measure'), ('and the text in that row in the columns named in'), ('By default, the search is performed in case-insensitive'), ('sensitive full-text search, use a binary collation '), ('example, a column that uses the latin1 character'), ('collation of latin1_bin to make it case sensitive') ; DROP INDEX idx1 ON t1; DROP TABLE t1; SET GLOBAL debug_dbug = @save_debug; CREATE TABLE t1 ( value VARCHAR(1024) ) ENGINE=InnoDB; CREATE FULLTEXT INDEX idx1 ON t1(value); SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep'; INSERT INTO t1 (value) VALUES ('By default or with the IN NATURAL LANGUAGE MODE modifier'), ('performs a natural language search for a string'), ('collection is a set of one or more columns included'), ('returns a relevance value; that is, a similarity measure'), ('and the text in that row in the columns named in'), ('By default, the search is performed in case-insensitive'), ('sensitive full-text search, use a binary collation '), ('example, a column that uses the latin1 character'), ('collation of latin1_bin to make it case sensitive') ; ALTER TABLE t1 DROP INDEX idx1, ALGORITHM=INPLACE; DROP TABLE t1; SET GLOBAL debug_dbug = @save_debug; CREATE TABLE t1 ( value VARCHAR(1024) ) ENGINE=InnoDB; CREATE FULLTEXT INDEX idx1 ON t1(value); SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep'; INSERT INTO t1 (value) VALUES ('example, a column that uses the latin1 character'), ('collation of latin1_bin to make it case sensitive') ; ALTER TABLE t1 DROP INDEX idx1, ALGORITHM=COPY; DROP TABLE t1; SET GLOBAL debug_dbug = @save_debug; CREATE TABLE t1 ( id1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY, value VARCHAR(1024) ) ENGINE=InnoDB; CREATE FULLTEXT INDEX idx1 ON t1(value); SET GLOBAL debug_dbug = '+d,fts_instrument_sync_request,fts_instrument_msg_sync_sleep'; INSERT INTO t1 (value) VALUES ('example, a column that uses the latin1 character'), ('collation of latin1_bin to make it case sensitive') ; ALTER TABLE t1 DROP COLUMN id1, ADD COLUMN id2 INT NOT NULL AUTO_INCREMENT PRIMARY KEY, DROP INDEX idx1, ADD FULLTEXT INDEX idx2(value), ALGORITHM=INPLACE; DROP TABLE t1; SET GLOBAL debug_dbug = @save_debug;