Hi, all
I am using mysql - 3.23.46, Intel, Solaris 8
Some questions:
1) Why cardinality value don't automaticly change when query change set of
unique values in index ( insert or update ) ?
Example:
mysql> create table a ( a int not null, index ( a ) );
Query OK, 0 rows affected (0.02 sec)
Hi, all
I am using mysql - 3.23.46, Intel, Solaris 8
Some questions:
1) Why cardinality value don't automaticly change when query change set of
unique values in index ( insert or update ) ?
Example:
mysql> create table a ( a int not null, index ( a ) );
Query OK, 0 rows affected (0.02 sec)
