Next Previous Up Contents
Next: 1d, 2d, ...: Isotropic Cartesian Matching
Up: Match Criteria
Previous: sky3d: Spherical Polar Matching

#### 7.1.5 `exact`: Exact Matching

    matcher=exact values*='<matched-value>'

> `values*`:
>   - `matched-value`: Value for exact match

The `exact` matcher compares arbitrary key values for exact equality. Rows are considered to match only if the values in their `matched-value` columns are exactly the same. These values can be strings, numbers, or anything else. A blank value never matches, not even with another blank one. Since the `params` parameter holds no values, it does not have to be specified. Note that the values must also be of the same type, so for instance a Long (64-bit) integer value will not match an Integer (32-bit) value.

Next Previous Up Contents
Next: 1d, 2d, ...: Isotropic Cartesian Matching
Up: Match Criteria
Previous: sky3d: Spherical Polar Matching

STILTS - Starlink Tables Infrastructure Library Tool Set
Starlink User Note256
STILTS web page: http://www.starlink.ac.uk/stilts/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk