[zhuwenxing]

The TTL schema test expected expired rows to reappear after switching or removing ttl_field. Background SortCompaction can permanently remove those rows, making the assertions depend on compaction timing.

Use non-expiring rows for schema-version and mutation checks. Add separate cases for switching the TTL field and inserting a past-timestamp row after removing TTL. Preserve the existing no-op ALTER, partial-upsert, search, and delete assertions.

Validation on server commit 105fa7a1c7 with PyMilvus 3.1.0rc98 and compaction enabled:

• Entire test file: 10 passed.
• Three affected TTL cases repeated five times each: 15 passed.
• Ruff 0.15.11 lint/format checks, configuration smoke check, py_compile, and git diff --check passed.

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
To complete the pull request process, please ask for approval from zhuwenxing after the PR has been reviewed.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• tests/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[sre-ci-robot]

[ci-v2-notice]
Notice: New ci-v2 system is enabled for this PR.

To rerun ci-v2 checks, comment with:

• /ci-rerun-code-check // for ci-v2/code-check
• /ci-rerun-code-check-macos // for Code Checker MacOS (GitHub Actions)
• /ci-rerun-build // for ci-v2/build
• /ci-rerun-build-all // for ci-v2/build-all (multi-arch builds)
• /ci-rerun-buildenv // for ci-v2/build-env (build milvus-env builder images; update .env after the new tag is ready)
• /ci-rerun-ut-integration // for ci-v2/ut-integration, will rerun ci-v2/build
• /ci-rerun-ut-go // for ci-v2/ut-go, will rerun ci-v2/build
• /ci-rerun-ut-cpp // for ci-v2/ut-cpp
• /ci-rerun-ut // for all ci-v2/ut-integration, ci-v2/ut-go, ci-v2/ut-cpp, will rerun ci-v2/build
• /ci-rerun-e2e-default // for ci-v2/e2e-default
• /ci-rerun-e2e-pulsar-wp // for ci-v2/e2e-pulsar-wp (GCP branch-equivalent Pulsar + Woodpecker Python E2E)
• /ci-rerun-e2e-amd // for ci-v2/e2e-amd (e2e pool dispatcher)
• /ci-rerun-e2e-dist-wp // for ci-v2/e2e-dist-wp (Tencent distributed woodpecker-service boundary)
• /ci-rerun-build-ut-cov // for ci-v2/build-ut-cov (build + unit tests in one pipeline)
• /ci-rerun-build-ut-cov-tcus // force TC-US build-ut-cov; respects Portal limit, never falls back to AWS
• /ci-rerun-gosdk // for ci-v2/go-sdk (Go SDK E2E tests, ARM)
• /ci-rerun-gosdk-std // for ci-v2/go-sdk-std (Go SDK E2E, standalone)
• /ci-rerun-gosdk-dist-wp // for ci-v2/go-sdk-dist-wp (Go SDK E2E, distributed + Woodpecker service)

If you have any questions or requests, please contact @zhikunyao.