storage-engine-playground/tools/exporter/examples/cartesian.scenario.json

{
  "name": "cartesian",
  "_description": "Two disjoint atoms over different tables. Exercises the 'stray' branch of planConjunction's spanning forest (no shared variables = no edge in the intersection graph) and the linear chain of natural-joins that fullJoinForest emits over disconnected components.",
  "schema": {
    "left": {
      "columns": [
        {
          "entity": "left"
        }
      ]
    },
    "right": {
      "columns": [
        {
          "entity": "right"
        }
      ]
    }
  },
  "facts": {
    "left": [
      [
        {
          "entity": [
            "left",
            1
          ]
        }
      ],
      [
        {
          "entity": [
            "left",
            2
          ]
        }
      ]
    ],
    "right": [
      [
        {
          "entity": [
            "right",
            10
          ]
        }
      ],
      [
        {
          "entity": [
            "right",
            20
          ]
        }
      ]
    ]
  },
  "atoms": [
    {
      "table": "left",
      "values": {
        "0": {
          "var": "a"
        }
      }
    },
    {
      "table": "right",
      "values": {
        "0": {
          "var": "b"
        }
      }
    }
  ],
  "expected_bindings": {
    "columns": [
      "a",
      "b"
    ],
    "rows": [
      [
        {
          "entity": [
            "left",
            1
          ]
        },
        {
          "entity": [
            "right",
            10
          ]
        }
      ],
      [
        {
          "entity": [
            "left",
            1
          ]
        },
        {
          "entity": [
            "right",
            20
          ]
        }
      ],
      [
        {
          "entity": [
            "left",
            2
          ]
        },
        {
          "entity": [
            "right",
            10
          ]
        }
      ],
      [
        {
          "entity": [
            "left",
            2
          ]
        },
        {
          "entity": [
            "right",
            20
          ]
        }
      ]
    ]
  }
}