- 5.7.29

 bin/mysql -uroot -S /tmp/mysql_ushastry.sock
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.29 MySQL Community Server (GPL)

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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> create database test;
Query OK, 1 row affected (0.00 sec)

mysql> use test
Database changed
mysql> CREATE TABLE t1 (a VARCHAR(200), b TEXT, FULLTEXT (a,b)) ENGINE = InnoDB charset utf8mb4;                                                                                                                                          
Query OK, 0 rows affected (0.02 sec)

mysql> INSERT INTO t1 VALUES('MySQL has now support', 'for full-text search'),                        ('Full-text indexes', 'are called collections'), ('Only MyISAM tables','support collections'), ('Function MATCH ... AGAINST()','is used to do a search'),         ('Full-text search in MySQL', 'implements vector space model');
Query OK, 5 rows affected (0.01 sec)
Records: 5  Duplicates: 0  Warnings: 0

mysql> shutdown;
Query OK, 0 rows affected (0.00 sec)



--
ls -l 98427/test/*INDEX_*.ibd
-rw-r----- 1 umshastr common 98304 Jan 30 09:57 98427/test/FTS_0000000000000028_0000000000000030_INDEX_1.ibd
-rw-r----- 1 umshastr common 98304 Jan 30 09:57 98427/test/FTS_0000000000000028_0000000000000030_INDEX_2.ibd
-rw-r----- 1 umshastr common 98304 Jan 30 09:57 98427/test/FTS_0000000000000028_0000000000000030_INDEX_3.ibd
-rw-r----- 1 umshastr common 98304 Jan 30 09:57 98427/test/FTS_0000000000000028_0000000000000030_INDEX_4.ibd
-rw-r----- 1 umshastr common 98304 Jan 30 09:57 98427/test/FTS_0000000000000028_0000000000000030_INDEX_5.ibd
-rw-r----- 1 umshastr common 98304 Jan 30 09:57 98427/test/FTS_0000000000000028_0000000000000030_INDEX_6.ibd


 strings 98427/test/FTS_0000000000000028_0000000000000030_INDEX_1.ibd
infimum
supremum
 strings 98427/test/FTS_0000000000000028_0000000000000030_INDEX_2.ibd
infimum
supremum
3against
2called
collections
 strings 98427/test/FTS_0000000000000028_0000000000000030_INDEX_3.ibd
infimum
supremum
6full
4function
/has
6implements
!indexes
 strings 98427/test/FTS_0000000000000028_0000000000000030_INDEX_4.ibd
infimum
supremum
1match
1model
2myisam
4mysql
/now
only
 strings 98427/test/FTS_0000000000000028_0000000000000030_INDEX_5.ibd
infimum
supremum
8search
1space
6support
2tables
text
 strings 98427/test/FTS_0000000000000028_0000000000000030_INDEX_6.ibd
infimum
supremum
0used
vector