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MDEV-30528 Assertion in dtype_get_at_most_n_mbchars

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1. Exclude merging history rows into fts index.

The check !history_fts && (index->type & DICT_FTS) was just incorrect
attempt to avoid history in fts index.

2. Don't check for duplicates for history rows.
This commit is contained in:
Aleksey Midenkov
2023-07-20 14:13:59 +03:00
parent 2ba5c387c1
commit add0c01bae
3 changed files with 49 additions and 4 deletions
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18
mysql-test/suite/innodb_fts/t/innodb_fts_misc.test
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@ -1341,3 +1341,21 @@ ALTER TABLE t1 KEY_BLOCK_SIZE=4;
ALTER TABLE t1 KEY_BLOCK_SIZE=0;
DROP TABLE t1;
--echo #
--echo # MDEV-30528 Assertion in dtype_get_at_most_n_mbchars
--echo #
create table t (f text) with system versioning character set utf8 engine=innodb;
insert into t (f) values
('mysql from tutorial dbms stands for database ...') ,
('when to use mysql well after that you went through a ...'),
('where will optimizing mysql in what tutorial we will show ...'),
('1001 mysql tricks 1. never run mysqld as root. 2. ...'),
('mysql vs. yoursql in the following database comparison ...'),
('mysql security when configured properly, mysql ...');
delete from t where f like 'mysql%';
alter table t add fulltext (f);
select * from t where match(f) against ("use");
select * from t where match(f) against ("run");
select * from t where match(f) against ("tutorial");
# cleanup
drop table t;