{
  "type": "excalidraw",
  "version": 2,
  "source": "https://excalidraw.com",
  "elements": [
    {
      "id": "cost-title",
      "type": "text",
      "x": 60,
      "y": 35,
      "width": 900,
      "height": 42,
      "angle": 0,
      "strokeColor": "#0f172a",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81001,
      "version": 1,
      "versionNonce": 91001,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 32,
      "fontFamily": 3,
      "text": "Choose by end-to-end work, not lookup alone",
      "rawText": "Choose by end-to-end work, not lookup alone",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "Choose by end-to-end work, not lookup alone",
      "autoResize": true,
      "lineHeight": 1.3
    },
    {
      "id": "cost-subtitle",
      "type": "text",
      "x": 60,
      "y": 82,
      "width": 1120,
      "height": 24,
      "angle": 0,
      "strokeColor": "#475569",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81002,
      "version": 1,
      "versionNonce": 91002,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 17,
      "fontFamily": 3,
      "text": "Exactness is a correctness boundary; performance depends on every stage after the index result.",
      "rawText": "Exactness is a correctness boundary; performance depends on every stage after the index result.",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "Exactness is a correctness boundary; performance depends on every stage after the index result.",
      "autoResize": true,
      "lineHeight": 1.3
    },
    {
      "id": "stage-lookup-box",
      "type": "rectangle",
      "x": 60,
      "y": 150,
      "width": 280,
      "height": 120,
      "angle": 0,
      "strokeColor": "#2563eb",
      "backgroundColor": "#eff6ff",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81003,
      "version": 1,
      "versionNonce": 91003,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "stage-lookup-text",
      "type": "text",
      "x": 86,
      "y": 178,
      "width": 225,
      "height": 68,
      "angle": 0,
      "strokeColor": "#1d4ed8",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81004,
      "version": 1,
      "versionNonce": 91004,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 19,
      "fontFamily": 3,
      "text": "1 · Index lookup\nFind pages, postings,\nor candidate zones",
      "rawText": "1 · Index lookup\nFind pages, postings,\nor candidate zones",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "1 · Index lookup\nFind pages, postings,\nor candidate zones",
      "autoResize": true,
      "lineHeight": 1.25
    },
    {
      "id": "stage-rowset-box",
      "type": "rectangle",
      "x": 390,
      "y": 150,
      "width": 280,
      "height": 120,
      "angle": 0,
      "strokeColor": "#7c3aed",
      "backgroundColor": "#f5f3ff",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81005,
      "version": 1,
      "versionNonce": 91005,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "stage-rowset-text",
      "type": "text",
      "x": 416,
      "y": 178,
      "width": 225,
      "height": 68,
      "angle": 0,
      "strokeColor": "#6d28d9",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81006,
      "version": 1,
      "versionNonce": 91006,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 19,
      "fontFamily": 3,
      "text": "2 · Row-set work\nMaterialize, union,\nor keep row ranges",
      "rawText": "2 · Row-set work\nMaterialize, union,\nor keep row ranges",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "2 · Row-set work\nMaterialize, union,\nor keep row ranges",
      "autoResize": true,
      "lineHeight": 1.25
    },
    {
      "id": "stage-data-box",
      "type": "rectangle",
      "x": 720,
      "y": 150,
      "width": 280,
      "height": 120,
      "angle": 0,
      "strokeColor": "#059669",
      "backgroundColor": "#ecfdf5",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81007,
      "version": 1,
      "versionNonce": 91007,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "stage-data-text",
      "type": "text",
      "x": 746,
      "y": 178,
      "width": 225,
      "height": 68,
      "angle": 0,
      "strokeColor": "#047857",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81008,
      "version": 1,
      "versionNonce": 91008,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 19,
      "fontFamily": 3,
      "text": "3 · Data read\nFetch projected columns\nfor selected rows or zones",
      "rawText": "3 · Data read\nFetch projected columns\nfor selected rows or zones",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "3 · Data read\nFetch projected columns\nfor selected rows or zones",
      "autoResize": true,
      "lineHeight": 1.25
    },
    {
      "id": "stage-recheck-box",
      "type": "rectangle",
      "x": 1050,
      "y": 150,
      "width": 330,
      "height": 120,
      "angle": 0,
      "strokeColor": "#ea580c",
      "backgroundColor": "#fff7ed",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81009,
      "version": 1,
      "versionNonce": 91009,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "stage-recheck-text",
      "type": "text",
      "x": 1076,
      "y": 178,
      "width": 270,
      "height": 68,
      "angle": 0,
      "strokeColor": "#c2410c",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81010,
      "version": 1,
      "versionNonce": 91010,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 19,
      "fontFamily": 3,
      "text": "4 · Residual recheck\nRequired for candidates;\ngrows with false positives",
      "rawText": "4 · Residual recheck\nRequired for candidates;\ngrows with false positives",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "4 · Residual recheck\nRequired for candidates;\ngrows with false positives",
      "autoResize": true,
      "lineHeight": 1.25
    },
    {
      "id": "arrow-1",
      "type": "arrow",
      "x": 342,
      "y": 210,
      "width": 42,
      "height": 0,
      "angle": 0,
      "strokeColor": "#94a3b8",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 2 },
      "seed": 81011,
      "version": 1,
      "versionNonce": 91011,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "points": [[0, 0], [42, 0]],
      "lastCommittedPoint": null,
      "startBinding": null,
      "endBinding": null,
      "startArrowhead": null,
      "endArrowhead": "arrow",
      "elbowed": false
    },
    {
      "id": "arrow-2",
      "type": "arrow",
      "x": 672,
      "y": 210,
      "width": 42,
      "height": 0,
      "angle": 0,
      "strokeColor": "#94a3b8",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 2 },
      "seed": 81012,
      "version": 1,
      "versionNonce": 91012,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "points": [[0, 0], [42, 0]],
      "lastCommittedPoint": null,
      "startBinding": null,
      "endBinding": null,
      "startArrowhead": null,
      "endArrowhead": "arrow",
      "elbowed": false
    },
    {
      "id": "arrow-3",
      "type": "arrow",
      "x": 1002,
      "y": 210,
      "width": 42,
      "height": 0,
      "angle": 0,
      "strokeColor": "#94a3b8",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 2 },
      "seed": 81013,
      "version": 1,
      "versionNonce": 91013,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "points": [[0, 0], [42, 0]],
      "lastCommittedPoint": null,
      "startBinding": null,
      "endBinding": null,
      "startArrowhead": null,
      "endArrowhead": "arrow",
      "elbowed": false
    },
    {
      "id": "btree-lane-box",
      "type": "rectangle",
      "x": 60,
      "y": 330,
      "width": 1320,
      "height": 95,
      "angle": 0,
      "strokeColor": "#93c5fd",
      "backgroundColor": "#eff6ff",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81014,
      "version": 1,
      "versionNonce": 91014,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "btree-lane-text",
      "type": "text",
      "x": 88,
      "y": 351,
      "width": 1240,
      "height": 52,
      "angle": 0,
      "strokeColor": "#1d4ed8",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81015,
      "version": 1,
      "versionNonce": 91015,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 18,
      "fontFamily": 3,
      "text": "BTree · candidate leaf pages → exact ids → data reads scale with matching rows and physical scattering",
      "rawText": "BTree · candidate leaf pages → exact ids → data reads scale with matching rows and physical scattering",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "BTree · candidate leaf pages → exact ids → data reads scale with matching rows and physical scattering",
      "autoResize": true,
      "lineHeight": 1.3
    },
    {
      "id": "bitmap-lane-box",
      "type": "rectangle",
      "x": 60,
      "y": 445,
      "width": 1320,
      "height": 95,
      "angle": 0,
      "strokeColor": "#c4b5fd",
      "backgroundColor": "#f5f3ff",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81016,
      "version": 1,
      "versionNonce": 91016,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "bitmap-lane-text",
      "type": "text",
      "x": 88,
      "y": 466,
      "width": 1240,
      "height": 52,
      "angle": 0,
      "strokeColor": "#6d28d9",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81017,
      "version": 1,
      "versionNonce": 91017,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 18,
      "fontFamily": 3,
      "text": "Bitmap · M value postings → union exact ids → data reads scale with H matching rows",
      "rawText": "Bitmap · M value postings → union exact ids → data reads scale with H matching rows",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "Bitmap · M value postings → union exact ids → data reads scale with H matching rows",
      "autoResize": true,
      "lineHeight": 1.3
    },
    {
      "id": "zonemap-lane-box",
      "type": "rectangle",
      "x": 60,
      "y": 560,
      "width": 1320,
      "height": 95,
      "angle": 0,
      "strokeColor": "#6ee7b7",
      "backgroundColor": "#ecfdf5",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81018,
      "version": 1,
      "versionNonce": 91018,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "zonemap-lane-text",
      "type": "text",
      "x": 88,
      "y": 581,
      "width": 1240,
      "height": 52,
      "angle": 0,
      "strokeColor": "#047857",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81019,
      "version": 1,
      "versionNonce": 91019,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 18,
      "fontFamily": 3,
      "text": "Zone Map · small statistics → candidate ranges → read zones → recheck grows with overlap and false positives",
      "rawText": "Zone Map · small statistics → candidate ranges → read zones → recheck grows with overlap and false positives",
      "textAlign": "left",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "Zone Map · small statistics → candidate ranges → read zones → recheck grows with overlap and false positives",
      "autoResize": true,
      "lineHeight": 1.3
    },
    {
      "id": "cost-conclusion-box",
      "type": "rectangle",
      "x": 60,
      "y": 700,
      "width": 1320,
      "height": 60,
      "angle": 0,
      "strokeColor": "#0f172a",
      "backgroundColor": "#0f172a",
      "fillStyle": "solid",
      "strokeWidth": 2,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": { "type": 3 },
      "seed": 81020,
      "version": 1,
      "versionNonce": 91020,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false
    },
    {
      "id": "cost-conclusion-text",
      "type": "text",
      "x": 125,
      "y": 720,
      "width": 1190,
      "height": 24,
      "angle": 0,
      "strokeColor": "#ffffff",
      "backgroundColor": "transparent",
      "fillStyle": "solid",
      "strokeWidth": 1,
      "strokeStyle": "solid",
      "roughness": 0,
      "opacity": 100,
      "groupIds": [],
      "frameId": null,
      "roundness": null,
      "seed": 81021,
      "version": 1,
      "versionNonce": 91021,
      "isDeleted": false,
      "boundElements": null,
      "updated": 1786185548000,
      "link": null,
      "locked": false,
      "fontSize": 18,
      "fontFamily": 3,
      "text": "The winner removes the most final data work at acceptable maintenance cost.",
      "rawText": "The winner removes the most final data work at acceptable maintenance cost.",
      "textAlign": "center",
      "verticalAlign": "top",
      "containerId": null,
      "originalText": "The winner removes the most final data work at acceptable maintenance cost.",
      "autoResize": true,
      "lineHeight": 1.3
    }
  ],
  "appState": {
    "gridSize": null,
    "viewBackgroundColor": "#ffffff"
  },
  "files": {}
}