polar_concurrency_control · alibaba_polar · PG 18

{
  "coverage": {
    "service": "alibaba_polar",
    "pg_major": 18,
    "provider": "Alibaba Cloud",
    "service_name": "PolarDB for PostgreSQL",
    "engine_status": "GA",
    "data_status": "PARTIAL",
    "list_scope": "PG_MAJOR_PARTIAL",
    "source_url": "https://help.aliyun.com/zh/polardb/polardb-for-postgresql/list-of-supported-plug-ins",
    "engine_url": "https://help.aliyun.com/zh/polardb/polardb-for-postgresql/major-version-lifecycle-description",
    "checked_at": "2026-08-24T08:00:00+08:00",
    "note": "Official source is explicitly incomplete or not attributable to a complete per-major allowlist; absent rows remain NULL.",
    "provenance": {
      "dataset": {
        "id": "20260824",
        "note": "Imported from the M1 PG14-PG18 managed PostgreSQL research task; source pages were reviewed on 2026-08-24.",
        "extra": {},
        "state": "PUBLISHED",
        "fact_rows": 8703,
        "generator": "bin/cloud_catalog.py",
        "is_current": true,
        "collected_at": "2026-08-24T00:28:06+00:00",
        "published_at": "2026-08-24T08:24:53+00:00",
        "service_rows": 33,
        "validated_at": "2026-08-24T08:24:53+00:00",
        "coverage_rows": 165,
        "universe_rows": 2243,
        "manifest_sha256": "96a4eae0b58019b7c8dc415fde43a8788d6ca439a5a776e8fccb0a84050bf58f",
        "universe_sha256": "afaf04c3e0b6b95e2085e104152642086478a1920520068f69a911167999437e",
        "generator_version": "1"
      },
      "service": {
        "id": "alibaba_polar",
        "name": "PolarDB for PostgreSQL",
        "note": null,
        "active": true,
        "homepage": "https://www.alibabacloud.com/product/polardb-for-postgresql",
        "provider": "alibaba_cloud",
        "matrix_table": "ext_aliyun_polar",
        "region_scope": "X86 architecture table"
      },
      "provider": {
        "id": "alibaba_cloud",
        "name": "Alibaba Cloud",
        "note": null,
        "homepage": "https://www.alibabacloud.com/product/apsaradb-for-rds-postgresql"
      },
      "engine_source": {
        "id": "alibaba_polar_engine_ea0cf9db29",
        "url": "https://help.aliyun.com/zh/polardb/polardb-for-postgresql/major-version-lifecycle-description",
        "kind": "ENGINE",
        "note": "Initial imported source registry; collector automation is pending.",
        "title": "PolarDB for PostgreSQL engine and version evidence",
        "active": true,
        "service": "alibaba_polar",
        "authority": "OFFICIAL",
        "collector": "manual_reference",
        "refresh_days": 30
      },
      "coverage_extra": {},
      "engine_capture": {
        "note": "Official reference URL only; the imported M1 dataset did not retain the upstream HTTP response body.",
        "extra": {},
        "http_etag": null,
        "row_count": 0,
        "source_id": "alibaba_polar_engine_ea0cf9db29",
        "dataset_id": "20260824",
        "captured_at": "2026-08-24T00:00:00+00:00",
        "content_type": null,
        "artifact_path": null,
        "capture_status": "REFERENCE_ONLY",
        "artifact_sha256": null,
        "http_last_modified": null
      },
      "extension_source": {
        "id": "alibaba_polar_extensions_0d7db2972f",
        "url": "https://help.aliyun.com/zh/polardb/polardb-for-postgresql/list-of-supported-plug-ins",
        "kind": "EXTENSIONS",
        "note": "Initial imported source registry; collector automation is pending.",
        "title": "PolarDB PostgreSQL supported extensions",
        "active": true,
        "service": "alibaba_polar",
        "authority": "OFFICIAL",
        "collector": "manual_normalized",
        "refresh_days": 30
      },
      "extension_capture": {
        "note": "Normalized source snapshot; the imported M1 dataset did not retain the upstream HTTP response body.",
        "extra": {},
        "http_etag": null,
        "row_count": 425,
        "source_id": "alibaba_polar_extensions_0d7db2972f",
        "dataset_id": "20260824",
        "captured_at": "2026-08-24T00:00:00+00:00",
        "content_type": "text/csv",
        "artifact_path": "db/cloud/datasets/20260824/raw/alibaba_polar.csv",
        "capture_status": "NORMALIZED",
        "artifact_sha256": "a9ea1a5be6553446cf37062aa1d47ced63845c936098c88998de77b5eca18ece",
        "http_last_modified": null
      }
    }
  },
  "fact": {
    "service": "alibaba_polar",
    "pg_major": 18,
    "raw_name": "polar_concurrency_control",
    "extension": null,
    "status": "UNSUPPORTED",
    "version": "-",
    "note": null,
    "extra": {}
  }
}