roundTime

Description

Returns a timestamp rounded down to the nearest interval.

Syntax

Like many functions in DataPrime, roundTime supports two notations, function and method notation. These interchangeable forms allow flexibility in how you structure expressions.

roundTime(sourceTimestamp: timestamp, timeInterval: interval): timestamp

(sourceTimestamp: timestamp).roundTime(timeInterval: interval): timestamp

Arguments

Example

Use case: Group timestamps into one-hour buckets

Round event timestamps to one-hour buckets and count CREATE actions per bucket.

[
{ "ts": 1728763337, "action": "CREATE" },
{ "ts": 1728751234, "action": "CREATE" },
{ "ts": 1728734567, "action": "UPDATE" },
{ "ts": 1728763312, "action": "DELETE" }
]

filter action == "CREATE"
| groupby roundTime(ts, 1h) as time_bucket agg count() as create_count

filter action == "CREATE"
| groupby ts.roundTime(1h) as time_bucket agg count() as create_count

Output

[
{ "time_bucket": 1728763200000000000, "create_count": 2 },
{ "time_bucket": 1728748800000000000, "create_count": 1 },
{ "time_bucket": 1728734400000000000, "create_count": 1 }
]