—unique

Counts the number of distinct values for a given field. Useful for cardinality checks — how many unique users hit an error, how many regions are active, etc.

Syntax

--unique:<field>

Examples

--unique:context.userId
--unique:context.region
--unique:context.env
--unique:level

Combine with filters:

level:error @last-24h --unique:context.userId
context.gateway:stripe --unique:context.orderId

Notes

• Returns a single count, not the list of values (use --top if you want the values themselves)
• Works on any field available in your logs