{
  "generatedAt": "2026-05-15T17:43:39.706Z",
  "iterations": 20,
  "fixture": {
    "relation": "public.imladri_bench_customers",
    "rows": 5000000000,
    "totalBytes": 853558345728
  },
  "coverage": {
    "relation": "public.imladri_bench_customers",
    "requestedRows": "5000000000",
    "generatedIdWidth": "10",
    "coverageMode": "numeric-expression-index",
    "coverageIndex": "imladri_bench_customers_numeric_id_uidx",
    "coverageChunks": "100",
    "coverageChunkRows": "50000000",
    "outsideRangeRows": "0",
    "exactRows": "5000000000",
    "validGeneratedIds": "5000000000",
    "invalidGeneratedIds": "0",
    "minGeneratedId": "1",
    "maxGeneratedId": "5000000000",
    "expectedMinGeneratedId": "1",
    "expectedMaxGeneratedId": "5000000000",
    "idCoverageComplete": true,
    "sourceFingerprint": "063c20e5dd1e88e59793971300217f1f0105bcecfadb26b59323aa036fa5daf4",
    "capturedAt": "2026-05-15T08:38:36.590Z"
  },
  "summaries": [
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "samples": 20,
      "createMs": {
        "min": 14.29,
        "p50": 15.96,
        "p95": 20.61,
        "max": 225.94
      },
      "createPhaseTimingsMs": {
        "schemaSetupMs": {
          "min": 0.19,
          "p50": 0.23,
          "p95": 0.5,
          "max": 1.29
        },
        "sourceMetadataMs": {
          "min": 3.08,
          "p50": 3.86,
          "p95": 6.56,
          "max": 34.03
        },
        "branchDdlMs": {
          "min": 8.53,
          "p50": 10.28,
          "p95": 14.2,
          "max": 22.42
        },
        "cloneTotalMs": {
          "min": 14.09,
          "p50": 15.67,
          "p95": 19.6,
          "max": 221.58
        },
        "storageBranchTotalMs": {
          "min": 14.16,
          "p50": 15.78,
          "p95": 19.7,
          "max": 222.79
        }
      },
      "transactionMs": {
        "min": 7.44,
        "p50": 10.84,
        "p95": 14.27,
        "max": 51.27
      },
      "cleanupMs": {
        "min": 7.25,
        "p50": 8.51,
        "p95": 14.44,
        "max": 16.92
      },
      "sourceMutationCountMax": 0,
      "proofScore": "6/6"
    }
  ],
  "samples": [
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 1,
      "createMs": 225.94,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 1.29,
        "sourceMetadataMs": 34.03,
        "branchDdlMs": 22.42,
        "cloneTotalMs": 221.58,
        "storageBranchTotalMs": 222.79
      },
      "transactionMs": 51.27,
      "cleanupMs": 16.92,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_1_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 2,
      "createMs": 15.95,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.38,
        "sourceMetadataMs": 3.86,
        "branchDdlMs": 9.14,
        "cloneTotalMs": 15.58,
        "storageBranchTotalMs": 15.76
      },
      "transactionMs": 13.15,
      "cleanupMs": 10.04,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_2_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 3,
      "createMs": 14.86,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.2,
        "sourceMetadataMs": 3.47,
        "branchDdlMs": 9.81,
        "cloneTotalMs": 14.54,
        "storageBranchTotalMs": 14.65
      },
      "transactionMs": 11.28,
      "cleanupMs": 8.51,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_3_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 4,
      "createMs": 18.22,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.19,
        "sourceMetadataMs": 6.56,
        "branchDdlMs": 10.13,
        "cloneTotalMs": 17.94,
        "storageBranchTotalMs": 18.01
      },
      "transactionMs": 14.27,
      "cleanupMs": 7.96,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_4_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 5,
      "createMs": 17.86,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.19,
        "sourceMetadataMs": 6.14,
        "branchDdlMs": 10.62,
        "cloneTotalMs": 17.61,
        "storageBranchTotalMs": 17.69
      },
      "transactionMs": 12.8,
      "cleanupMs": 10.27,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_5_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 6,
      "createMs": 20.61,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.5,
        "sourceMetadataMs": 4.7,
        "branchDdlMs": 11.13,
        "cloneTotalMs": 19.6,
        "storageBranchTotalMs": 19.7
      },
      "transactionMs": 10.84,
      "cleanupMs": 9.94,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_6_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 7,
      "createMs": 18.99,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.27,
        "sourceMetadataMs": 3.86,
        "branchDdlMs": 13.64,
        "cloneTotalMs": 18.65,
        "storageBranchTotalMs": 18.74
      },
      "transactionMs": 13.57,
      "cleanupMs": 10.03,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_7_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 8,
      "createMs": 15.14,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.27,
        "sourceMetadataMs": 3.38,
        "branchDdlMs": 10.28,
        "cloneTotalMs": 14.87,
        "storageBranchTotalMs": 14.95
      },
      "transactionMs": 8.52,
      "cleanupMs": 7.55,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_8_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 9,
      "createMs": 16.01,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.26,
        "sourceMetadataMs": 3.81,
        "branchDdlMs": 9.18,
        "cloneTotalMs": 15.02,
        "storageBranchTotalMs": 15.82
      },
      "transactionMs": 13.57,
      "cleanupMs": 9.24,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_9_7",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 10,
      "createMs": 15.96,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.22,
        "sourceMetadataMs": 4.1,
        "branchDdlMs": 10.44,
        "cloneTotalMs": 15.67,
        "storageBranchTotalMs": 15.78
      },
      "transactionMs": 8.57,
      "cleanupMs": 14.44,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_10_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 11,
      "createMs": 19.38,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.28,
        "sourceMetadataMs": 3.5,
        "branchDdlMs": 14.2,
        "cloneTotalMs": 18.93,
        "storageBranchTotalMs": 19.09
      },
      "transactionMs": 11.93,
      "cleanupMs": 7.58,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_11_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 12,
      "createMs": 16.74,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.19,
        "sourceMetadataMs": 6.12,
        "branchDdlMs": 9.15,
        "cloneTotalMs": 16.34,
        "storageBranchTotalMs": 16.41
      },
      "transactionMs": 10.26,
      "cleanupMs": 10.43,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_12_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 13,
      "createMs": 16.23,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.26,
        "sourceMetadataMs": 3.17,
        "branchDdlMs": 11.38,
        "cloneTotalMs": 15.97,
        "storageBranchTotalMs": 16.06
      },
      "transactionMs": 13.57,
      "cleanupMs": 8.2,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_13_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 14,
      "createMs": 15.88,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.25,
        "sourceMetadataMs": 3.23,
        "branchDdlMs": 11.38,
        "cloneTotalMs": 15.67,
        "storageBranchTotalMs": 15.76
      },
      "transactionMs": 9.22,
      "cleanupMs": 8.41,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_14_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 15,
      "createMs": 15.25,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.23,
        "sourceMetadataMs": 4.22,
        "branchDdlMs": 9.68,
        "cloneTotalMs": 15.03,
        "storageBranchTotalMs": 15.12
      },
      "transactionMs": 10.23,
      "cleanupMs": 7.25,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_15_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 16,
      "createMs": 14.69,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.24,
        "sourceMetadataMs": 4.96,
        "branchDdlMs": 8.53,
        "cloneTotalMs": 14.49,
        "storageBranchTotalMs": 14.56
      },
      "transactionMs": 10.4,
      "cleanupMs": 8.17,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_16_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 17,
      "createMs": 14.84,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.2,
        "sourceMetadataMs": 4.75,
        "branchDdlMs": 8.86,
        "cloneTotalMs": 14.63,
        "storageBranchTotalMs": 14.71
      },
      "transactionMs": 11.95,
      "cleanupMs": 7.94,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_17_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 18,
      "createMs": 16.02,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.19,
        "sourceMetadataMs": 3.09,
        "branchDdlMs": 11.57,
        "cloneTotalMs": 15.81,
        "storageBranchTotalMs": 15.89
      },
      "transactionMs": 9.37,
      "cleanupMs": 9.74,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_18_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 19,
      "createMs": 14.29,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.22,
        "sourceMetadataMs": 3.33,
        "branchDdlMs": 9.59,
        "cloneTotalMs": 14.09,
        "storageBranchTotalMs": 14.16
      },
      "transactionMs": 7.44,
      "cleanupMs": 9.2,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_19_",
      "branchDatabaseName": null
    },
    {
      "caseName": "storage_cow",
      "strategy": "storage_branch",
      "backend": "postgres_copy_on_write_schema",
      "iteration": 20,
      "createMs": 15.31,
      "createPhaseTimingsMs": {
        "schemaSetupMs": 0.2,
        "sourceMetadataMs": 3.08,
        "branchDdlMs": 10.97,
        "cloneTotalMs": 15.11,
        "storageBranchTotalMs": 15.18
      },
      "transactionMs": 7.86,
      "cleanupMs": 7.75,
      "sourceMutationCount": 0,
      "rowsReturned": 1,
      "proofScore": "6/6",
      "sourceEstimatedRows": 5000000000,
      "sourceTotalBytes": 853558345728,
      "cloneSchema": "imladri_branch_imladri_branch_scale_storage_cow_20_",
      "branchDatabaseName": null
    }
  ],
  "failures": []
}
