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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.


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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