FIRST_TIME_SERIES

Returns the first value per time interval.

The size of the time intervals is configurable and dynamic; the time interval used changes depending on how many points you wish to hold per aggregation key.

The time interval and/or the number of points per interval can be changed to suit your needs.

Note that this function is non-deterministic.

Syntax

FIRST_TIME_SERIES([MAX_POINTS, INTERVALS,] TIME, VALUE)

Arguments

MAX_POINTS

Type: integer

Default: 300

(Optional) The maximum amount of points to hold before reducing the resolution to the next interval size.

INTERVALS

Type: array

Default: [60000, 300000, 600000, 1800000, 3600000, 10800000, 21600000, 43200000, 86400000]

(Optional) Array of integers representing the time interval buckets in epoch ms for which to return data.

If the aggregation has more than MAX_POINTS values in the given window, it will use the next interval from this array to reduce the amount of points to comply withMAX_POINTS.

TIME

Type: numeric

The field with the time in epoch ms that VALUE is associated with.

VALUE

Type: any type

The field to get the first value of per TIME bucket.

Returns

Type: array

Returns an array of key value pairs where the key is the time (in epoch ms) and the value is the first VALUE from within that time frame.