in(item: storable, [choice: item]+) -> bool

Returns true if the expression matches with any value in the given set.

Domain

This is a scalar function (calculates a single output value for a single input row).

Categories

• Boolean

Examples

filter in(OBSERVATION_KIND, 'http', 'system', 'grpc')

Returns true where OBSERVATION_KIND is either 'http', 'system' or 'grpc'