PromQL queries with binary operators after an or operator result in error

[dekelpilli]

What type of bug is this?

Unexpected error

What subsystems are affected?

Query Engine

Minimal reproduce step

On a metric with data in the given time range, execute

 {__name__="my_metric"} or {__name__="my_metric"} + 5

The actual query I want to run is

(delta({__name__="my_metric"}[1m] offset 15s) * 60) > 100
or 
({__name__="my_metric"} * 0)

As a way to default missing/filtered values to 0. Usually I would use ... or label_replace(vector(0), ...), but label_replace isn't supported yet.

What did you expect to see?

The left query values being ORed with 0

What did you see instead?

PlanQuery: Internal error during building DataFusion plan: No field named my_metric."greptime_value * Float64(0)". Valid fields are my_metric.my_tag, my_metric.greptime_timestamp, "greptime_value * Float64(0)".

What operating system did you use?

Mac OS 15.1

What version of GreptimeDB did you use?

0.11.0

Relevant log output and stack trace

No response

[waynexia]

Thanks for reporting this. It seems caused by column name mismatching, let me file a fix.

BTW, does this work for you as a workaround? (delta({__name__="my_metric"}[1m] offset 15s) * 60) > 100 or vector(0)

[dekelpilli]

Thanks for getting on that so quickly.

BTW, does this work for you as a workaround? (delta({name="my_metric"}[1m] offset 15s) * 60) > 100 or vector(0)

No, because we expect the delta portion to return a series (or multiple series) with labels, which then won't match the vector(0) portion. This is a workaround because label_replace isn't ready.

[killme2008]

I implemented the label_join and label_replace functions in #5153. Thank you for your report.