SpansMetric always wants to be updated

[op]

Describe what happened

We have a SpansMetric defined in Pulumi but it always seem to contain an empty diff. We have tried pulumi up and pulumi refresh, still the same.

Sample program

datadog.SpansMetric(
    "my_backup_success",
    name="my_backup.backup_success",
    compute=datadog.SpansMetricComputeArgs(
        path="@backup_success",
        aggregation_type="distribution",
    ),
    filter=datadog.SpansMetricFilterArgs(
        query="service:my-backup resource_name:my-backup.backup",
    ),
    group_bies=[
        datadog.SpansMetricGroupByArgs(path="env", tag_name="env"),
    ],
)

Log output

https://gist.github.com/op/07a8863312b8edb36994b7d83fd548a7

Affected Resource(s)

No response

Output of pulumi about

pulumi about
CLI
Version      3.141.0
Go Version   go1.23.3
Go Compiler  gc

Plugins
KIND      NAME        VERSION
resource  aws         6.27.0
resource  cloudflare  5.34.0
resource  datadog     4.27.0
resource  gcp         6.67.1
resource  kafka       3.7.1
resource  oci         1.27.0
resource  postgresql  3.11.0
language  python      unknown
resource  random      4.16.0

Host
OS       ubuntu
Version  24.04
Arch     x86_64

This project is written in python: executable='/home/.../ops/pulumi/venv/bin/python' version='3.11.9'

[..]

Backend
Name           pulumi.com
[..]

Dependencies:
NAME               VERSION
boto3              1.35.69
cryptography       42.0.8
pip                24.0
pulumi_aws         6.27.0
pulumi_cloudflare  5.34.0
pulumi_datadog     4.27.0
pulumi-gcp         6.67.1
pulumi_kafka       3.7.1
pulumi_oci         1.27.0
pulumi_postgresql  3.11.0
pulumi_random      4.16.0
setuptools         65.5.0
shared             0.0.1

Additional context

I tried to re-create it by running and using the output from this:

pulumi state delete urn:pulumi:main::my::datadog:index/spansMetric:SpansMetric::my_backup_success
pulumi import datadog:index/spansMetric:SpansMetric my_backup_success my_backup.backup_success

Running pulumi up or pulumi refresh still show a diff.

Contributing

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[VenelinMartinov]

Hey thanks for reporting and including a repro here @op. This seems to be a problem with the terraform provider which we use under the hood. I've raised an issue and a PR there:
DataDog/terraform-provider-datadog#2706
DataDog/terraform-provider-datadog#2707

This is further made worse by the fact we do not display the property which causes the problem. I had a look at the logs and that is include_percentiles. While waiting for this to be fixed, you should be able to work around the problem by setting that explicitly to false, like so:

datadog.SpansMetric(
    "my_backup_success",
    name="my_backup.backup_success",
    compute=datadog.SpansMetricComputeArgs(
        path="@backup_success",
        aggregation_type="distribution",
        include_percentiles=False,
    ),
    filter=datadog.SpansMetricFilterArgs(
        query="service:my-backup resource_name:my-backup.backup",
    ),
    group_bies=[
        datadog.SpansMetricGroupByArgs(path="env", tag_name="env"),
    ],