Learn more about the Cortex Query Language earliest
aggregate comp function that returns the earliest field value found with the matching criteria.
Syntax
comp earliest(<field>) [as <alias>] by <field_1>,<field_2> [addrawdata = true|false as <target field>]
Description
The earliest
aggregation is a comp function that returns the chronologically earliest value found for a field that has matching values for the fields identified in the by
clause. This function is dependent on a time-related field, so for your query to be considered valid, ensure that the dataset running this query contains a time-related field.
In addition, you can configure whether the raw data events are displayed by setting addrawdata
to either true
or false
(default), which are used to configure the final comp
results. When including raw data events in your query, the query runs for up to 50 fields that you define and displays up to 100 events.
Examples
Return the chronologically earliest timestamp found for any given action_total_download
value for all records that have matching values for their actor_process_image_path
and actor_process_command_line
fields. The query returns a maximum of 100 xdr_data
records and includes a raw_data
column listing the raw data events used to display the final comp
results.
dataset = xdr_data | fields _time, actor_process_image_path as Process_Path, actor_process_command_line as Process_CMD, action_total_download as Download | filter Download > 0 | limit 100 | comp earliest(_time) as download_time by Process_Path, Process_CMD addrawdata = true as raw_data