Question

I have unique index on 2 columns: name(varchar) and add_date(date).
If i add non unique indexes on name and on add_date its increase select speed or not?
name and add_date apart may not be unique.
UPD
MySQL console show columns says:
| Field | Type | Null | Key | Default | Extra |
| name | varchar(10) | NO | MUL | NULL | |
| time | date | NO | MUL | NULL | |

Answer 1

it will speed if you selecting on each one separately.

but make sure you need it.