Clarify Postgres spec usage of ignore_databases

[sethsamuel]

What does this PR do?

Clarifies the Postgres spec.yaml with regards to the scope of the top level ignore_databases.

Motivation

#24531

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Add qa/required if this PR needs QA validation, or qa/skip-qa if it does not. Exactly one of the two is required.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[cit-pr-commenter-54b7da]

evalya-impact-summary

evalya impact analysis

Impact analysis: 0 selected, 0 skipped (of 0 test tasks)
Publish tasks:   1 (always emitted)
Diff (3 files):
  postgres/assets/configuration/spec.yaml
  postgres/changelog.d/24922.added
  postgres/datadog_checks/postgres/data/conf.yaml.example

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[dd-octo-sts]

Validation Report

All 21 validations passed.

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Validation	Description	Status
agent-reqs	Verify check versions match the Agent requirements file	✅
ci	Validate CI configuration and code coverage settings	✅
codeowners	Validate every integration has a CODEOWNERS entry	✅
config	Validate default configuration files against spec.yaml	✅
dep	Verify dependency pins are consistent and Agent-compatible	✅
http	Validate integrations use the HTTP wrapper correctly	✅
imports	Validate check imports do not use deprecated modules	✅
integration-style	Validate check code style conventions	✅
jmx-metrics	Validate JMX metrics definition files and config	✅
labeler	Validate PR labeler config matches integration directories	✅
legacy-signature	Validate no integration uses the legacy Agent check signature	✅
license-headers	Validate Python files have proper license headers	✅
licenses	Validate third-party license attribution list	✅
metadata	Validate metadata.csv metric definitions	✅
models	Validate configuration data models match spec.yaml	✅
openmetrics	Validate OpenMetrics integrations disable the metric limit	✅
package	Validate Python package metadata and naming	✅
qa-label	Validate the pull request declares whether it needs QA for the next Agent release	✅
readmes	Validate README files have required sections	✅
saved-views	Validate saved view JSON file structure and fields	✅
version	Validate version consistency between package and changelog	✅

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[datadog-prod-us1-4]

   

⚠️ Warnings

🚦 20 Pipeline jobs failed

PR | test / test-minimum-base-package (linux, ubuntu-22.04, postgres, Postgres (py3.13-10.0-C), py3.13-10.0-C) / minimum-base-package-Postgres (py3.13-10.0-C)-py3.13-10.0-C — 🔧 Needs a code fix, caused by this PR

View in Datadog · View in GitHub Actions

1 failed test. Error: Check still alive after cancel() + del -- pinned by: ['CheckLoggingAdapter']

PR | test / test-minimum-base-package (linux, ubuntu-22.04, postgres, Postgres (py3.13-10.0-UTF8), py3.13-10.... / minimum-base-package-Postgres (py3.13-10.0-UTF8)-py3.13-10.0-UTF8 — 🔧 Needs a code fix, caused by this PR

View in Datadog · View in GitHub Actions

1 failed test. Failed: Check still alive after cancel() + del -- pinned by: ['CheckLoggingAdapter'] at tests/test_unit.py:443

PR | test / test-minimum-base-package (linux, ubuntu-22.04, postgres, Postgres (py3.13-11.0-C), py3.13-11.0-C) / minimum-base-package-Postgres (py3.13-11.0-C)-py3.13-11.0-C — 🔧 Needs a code fix, caused by this PR

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1 failed test. Error: Check still alive after cancel() + del -- pinned by: ['CheckLoggingAdapter'] in tests/test_unit.py:443.

View all 20 failed jobs.

📋 Copy prompt for your agent

CI on my pull request is failing. Help me find and fix the root cause of each failing job below — they were flagged as caused by changes in this PR, so focus on the diff. For each job, explain the failure and propose a fix.

Branch: seth.samuel/postgres-docs-update

PR | test / test-minimum-base-package (linux, ubuntu-22.04, postgres, Postgres (py3.13-10.0-C), py3.13-10.0-C) / minimum-base-package-Postgres (py3.13-10.0-C)-py3.13-10.0-C
Commit: 3318a959faf31e908a2cc25c9da3a2f1402959dc
Error (code / test):
1 failed test. Error: Check still alive after cancel() + del -- pinned by: ['CheckLoggingAdapter']
CI job: https://github.com/DataDog/integrations-core/actions/runs/32291106145/job/96192458284

PR | test / test-minimum-base-package (linux, ubuntu-22.04, postgres, Postgres (py3.13-10.0-UTF8), py3.13-10.... / minimum-base-package-Postgres (py3.13-10.0-UTF8)-py3.13-10.0-UTF8
Commit: 3318a959faf31e908a2cc25c9da3a2f1402959dc
Error (code / test):
1 failed test. Failed: Check still alive after cancel() + del -- pinned by: ['CheckLoggingAdapter'] at tests/test_unit.py:443
CI job: https://github.com/DataDog/integrations-core/actions/runs/32291106145/job/96192458193

PR | test / test-minimum-base-package (linux, ubuntu-22.04, postgres, Postgres (py3.13-11.0-C), py3.13-11.0-C) / minimum-base-package-Postgres (py3.13-11.0-C)-py3.13-11.0-C
Commit: 3318a959faf31e908a2cc25c9da3a2f1402959dc
Error (code / test):
1 failed test. Error: Check still alive after cancel() + del -- pinned by: ['CheckLoggingAdapter'] in tests/test_unit.py:443.
CI job: https://github.com/DataDog/integrations-core/actions/runs/32291106145/job/96192458249

Plus 16 more failing jobs not shown here.

ℹ️ Info

No other issues found (see more)

🧪 All tests passed
❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 94.19% (+5.59%)

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