mirrors/prometheus
1
0
Fork 0
mirror of https://github.com/prometheus/prometheus.git synced 2026-05-04 20:06:12 +02:00
Code Issues Projects Releases Wiki Activity

Update duration expression docs

Browse Source 
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
This commit is contained in:
Julien Pivotto 2025-06-16 10:53:36 +02:00
parent 6d56e77e0e
commit db15681633
1 changed files with 14 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
docs/feature_flags.md
View File

@ -185,17 +185,25 @@ state is mutex guarded. Cumulative-only OTLP requests are not affected.
`--enable-feature=promql-duration-expr`
With this flag, arithmetic expressions can be used in time durations in range queries and offset durations. For example:
With this flag, arithmetic expressions can be used in time durations in range queries and offset durations.
In range queries:
rate(http_requests_total[5m * 2]) # 10 minute range
rate(http_requests_total[(5+2) * 1m]) # 7 minute range
```
rate(http_requests_total[5m * 2]) # 10 minute range
rate(http_requests_total[(5+2) * 1m]) # 7 minute range
```
In offset durations:
http_requests_total offset (1h / 2) # 30 minute offset
http_requests_total offset ((2 ^ 3) * 1m) # 8 minute offset
```
http_requests_total offset (1h / 2) # 30 minute offset
http_requests_total offset ((2 ^ 3) * 1m) # 8 minute offset
```
Note: Duration expressions are not supported in the @ timestamp operator.
When using offset with duration expressions, you must wrap the expression in
parentheses. Without parentheses, only the first duration value will be used in
the offset calculation.
**Note**: Duration expressions are not supported in the @ timestamp operator.
The following operators are supported: