{
  "format": "dataset-manifest/1",
  "slug": "real-estate-sales-sample-database",
  "version": 3,
  "seed": "flagship:real-estate-sales-sample-database:1k",
  "engine": 2,
  "engineVersion": "1.0.0",
  "spec": {
    "format": "dataset/1",
    "engine": 2,
    "slug": "real-estate-sales-sample-database",
    "name": "Real estate sales sample database",
    "tagline": "Listings, offers, appraisals and closed sales across agents and agencies.",
    "description": "A residential real estate market: properties listed in fourteen states, the offers made on them, the appraisals and inspections before closing, and the sales themselves, each tied to the agent and client who made it. Prices follow the long right tail real markets have -- most homes in the hundreds of thousands, a few in the millions -- and every offer and sale is dated after its property was listed.",
    "domain": "real-estate",
    "shape": "transactional",
    "useCases": [
      "sql-practice",
      "bi-dashboards",
      "test-fixtures"
    ],
    "keywords": [
      "real estate",
      "property sales",
      "home prices",
      "sample database"
    ],
    "locale": "en_US",
    "license": "CC0-1.0",
    "version": 1,
    "seed": "flagship:real-estate-sales-sample-database",
    "tables": {
      "agencies": {
        "description": "Rows for the agencies table.",
        "rows": 16,
        "columns": {
          "agency_id": {
            "kind": "pk"
          },
          "address": {
            "kind": "location.streetAddress"
          },
          "agency_name": {
            "kind": "company.name"
          },
          "city": {
            "kind": "place.city"
          },
          "phone": {
            "kind": "place.phone"
          },
          "state": {
            "kind": "place.regionCode"
          },
          "zip_code": {
            "kind": "place.postcode"
          }
        }
      },
      "agent_agencies": {
        "description": "Rows for the agent_agencies table.",
        "rows": 125,
        "columns": {
          "agent_agency_id": {
            "kind": "pk"
          },
          "agency_id": {
            "kind": "fk",
            "ref": "agencies.agency_id",
            "skew": "long-tail"
          },
          "agent_id": {
            "kind": "fk",
            "ref": "agents.agent_id",
            "skew": "long-tail"
          },
          "end_date": {
            "kind": "date",
            "after": "start_date",
            "withinDays": 1500,
            "nullable": true,
            "nullRate": 0.55
          },
          "start_date": {
            "kind": "date",
            "from": "2021-01-01",
            "to": "2025-12-31"
          }
        }
      },
      "agents": {
        "description": "Rows for the agents table.",
        "rows": 125,
        "columns": {
          "agent_id": {
            "kind": "pk"
          },
          "email": {
            "kind": "internet.email",
            "from": {
              "firstName": "first_name",
              "lastName": "last_name"
            }
          },
          "first_name": {
            "kind": "person.firstName"
          },
          "last_name": {
            "kind": "person.lastName"
          },
          "license_number": {
            "kind": "pattern",
            "pattern": "RE-#######",
            "unique": true
          },
          "phone": {
            "kind": "phone.number"
          }
        }
      },
      "appraisals": {
        "description": "Rows for the appraisals table.",
        "rows": 125,
        "columns": {
          "appraisal_id": {
            "kind": "pk"
          },
          "appraisal_date": {
            "kind": "date",
            "after": "property_id.created_at",
            "withinDays": 120
          },
          "appraised_value": {
            "kind": "decimal",
            "min": 85000,
            "max": 2400000,
            "scale": 2,
            "distribution": "long-tail"
          },
          "appraiser_id": {
            "kind": "fk",
            "ref": "appraisers.appraiser_id",
            "skew": "long-tail"
          },
          "property_id": {
            "kind": "fk",
            "ref": "properties.property_id",
            "skew": "long-tail"
          }
        }
      },
      "appraisers": {
        "description": "Rows for the appraisers table.",
        "rows": 16,
        "columns": {
          "appraiser_id": {
            "kind": "pk"
          },
          "first_name": {
            "kind": "person.firstName"
          },
          "last_name": {
            "kind": "person.lastName"
          },
          "license_number": {
            "kind": "pattern",
            "pattern": "[APR]-######",
            "unique": true
          }
        }
      },
      "clients": {
        "description": "Rows for the clients table.",
        "rows": 125,
        "columns": {
          "client_id": {
            "kind": "pk"
          },
          "created_at": {
            "kind": "datetime",
            "from": "2023-01-01",
            "to": "2025-12-31"
          },
          "email": {
            "kind": "internet.email",
            "from": {
              "firstName": "first_name",
              "lastName": "last_name"
            }
          },
          "first_name": {
            "kind": "person.firstName"
          },
          "last_name": {
            "kind": "person.lastName"
          },
          "phone": {
            "kind": "phone.number"
          }
        }
      },
      "inspections": {
        "description": "Rows for the inspections table.",
        "rows": 125,
        "columns": {
          "inspection_id": {
            "kind": "pk"
          },
          "inspection_date": {
            "kind": "date",
            "after": "property_id.created_at",
            "withinDays": 90
          },
          "inspector_id": {
            "kind": "fk",
            "ref": "inspectors.inspector_id",
            "skew": "long-tail"
          },
          "property_id": {
            "kind": "fk",
            "ref": "properties.property_id",
            "skew": "long-tail"
          },
          "result": {
            "kind": "enum",
            "values": [
              "passed",
              "passed_with_notes",
              "failed"
            ],
            "weights": [
              62,
              31,
              7
            ]
          }
        }
      },
      "inspectors": {
        "description": "Rows for the inspectors table.",
        "rows": 16,
        "columns": {
          "inspector_id": {
            "kind": "pk"
          },
          "first_name": {
            "kind": "person.firstName"
          },
          "last_name": {
            "kind": "person.lastName"
          },
          "license_number": {
            "kind": "pattern",
            "pattern": "INS-######",
            "unique": true
          }
        }
      },
      "neighbourhoods": {
        "description": "Rows for the neighbourhoods table.",
        "rows": 16,
        "columns": {
          "neighbourhood_id": {
            "kind": "pk"
          },
          "city": {
            "kind": "place.city"
          },
          "name": {
            "kind": "title",
            "min": 1,
            "max": 2,
            "pool": [
              "Oak",
              "Maple",
              "Cedar",
              "River",
              "Hill",
              "Park",
              "Lake",
              "Meadow",
              "Ridge",
              "Grove",
              "Harbor",
              "Heights",
              "Village",
              "Springs",
              "Brook",
              "Pines"
            ]
          },
          "state": {
            "kind": "place.regionCode"
          }
        }
      },
      "offers": {
        "description": "Rows for the offers table.",
        "rows": 125,
        "columns": {
          "offer_id": {
            "kind": "pk"
          },
          "client_id": {
            "kind": "fk",
            "ref": "clients.client_id",
            "skew": "long-tail"
          },
          "offer_amount": {
            "kind": "decimal",
            "min": 85000,
            "max": 2400000,
            "scale": 2,
            "distribution": "long-tail"
          },
          "offer_date": {
            "kind": "date",
            "after": "property_id.created_at",
            "withinDays": 180
          },
          "property_id": {
            "kind": "fk",
            "ref": "properties.property_id",
            "skew": "long-tail"
          },
          "status": {
            "kind": "enum",
            "values": [
              "submitted",
              "countered",
              "accepted",
              "rejected",
              "withdrawn"
            ],
            "weights": [
              18,
              22,
              25,
              27,
              8
            ]
          }
        }
      },
      "payment_methods": {
        "description": "Rows for the payment_methods table.",
        "rows": 6,
        "columns": {
          "payment_method_id": {
            "kind": "pk"
          },
          "method_name": {
            "kind": "enum",
            "values": [
              "conventional_mortgage",
              "cash",
              "fha_loan",
              "va_loan",
              "bridge_loan",
              "seller_financing"
            ],
            "unique": true
          }
        }
      },
      "properties": {
        "description": "Rows for the properties table.",
        "rows": 125,
        "columns": {
          "property_id": {
            "kind": "pk"
          },
          "address": {
            "kind": "location.streetAddress"
          },
          "city": {
            "kind": "place.city"
          },
          "created_at": {
            "kind": "datetime",
            "from": "2021-01-01",
            "to": "2025-12-31",
            "dayProfile": "business"
          },
          "price": {
            "kind": "decimal",
            "min": 85000,
            "max": 2400000,
            "scale": 2,
            "distribution": "long-tail"
          },
          "property_type_id": {
            "kind": "fk",
            "ref": "property_types.property_type_id",
            "skew": "long-tail"
          },
          "state": {
            "kind": "place.regionCode"
          },
          "zip_code": {
            "kind": "place.postcode"
          }
        }
      },
      "property_neighbourhoods": {
        "description": "Rows for the property_neighbourhoods table.",
        "rows": 125,
        "columns": {
          "property_neighbourhood_id": {
            "kind": "pk"
          },
          "assigned_date": {
            "kind": "date",
            "from": "2023-01-01",
            "to": "2025-12-31"
          },
          "neighbourhood_id": {
            "kind": "fk",
            "ref": "neighbourhoods.neighbourhood_id",
            "skew": "long-tail"
          },
          "property_id": {
            "kind": "fk",
            "ref": "properties.property_id",
            "skew": "long-tail"
          }
        }
      },
      "property_types": {
        "description": "Rows for the property_types table.",
        "rows": 8,
        "columns": {
          "property_type_id": {
            "kind": "pk"
          },
          "type_name": {
            "kind": "enum",
            "values": [
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              "condo",
              "townhouse",
              "multi_family",
              "duplex",
              "co_op",
              "manufactured",
              "land"
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            "unique": true
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        }
      },
      "repairs": {
        "description": "Rows for the repairs table.",
        "rows": 125,
        "columns": {
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            "kind": "pk"
          },
          "cost": {
            "kind": "decimal",
            "min": 120,
            "max": 65000,
            "scale": 2,
            "distribution": "long-tail"
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          "description": {
            "kind": "sentence"
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          "property_id": {
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            "ref": "properties.property_id",
            "skew": "long-tail"
          },
          "repair_date": {
            "kind": "date",
            "after": "property_id.created_at",
            "withinDays": 365
          }
        }
      },
      "transactions": {
        "description": "Rows for the transactions table.",
        "rows": 1000,
        "columns": {
          "transaction_id": {
            "kind": "pk"
          },
          "agent_id": {
            "kind": "fk",
            "ref": "agents.agent_id",
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          "client_id": {
            "kind": "fk",
            "ref": "clients.client_id",
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          "payment_method_id": {
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            "ref": "payment_methods.payment_method_id",
            "skew": "long-tail"
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          "property_id": {
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          "sale_price": {
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          "transaction_date": {
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        }
      }
    }
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    "agents": 125,
    "agent_agencies": 125,
    "appraisers": 16,
    "clients": 125,
    "inspectors": 16,
    "neighbourhoods": 16,
    "payment_methods": 6,
    "property_types": 8,
    "properties": 125,
    "appraisals": 125,
    "inspections": 125,
    "offers": 125,
    "property_neighbourhoods": 125,
    "repairs": 125,
    "transactions": 1000
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            "name": "An agent's spell at an agency ends after it starts",
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      },
      {
        "name": "Every offer is dated on or after its property was listed",
        "sql": "SELECT count(*) AS violations FROM offers o JOIN properties p ON p.property_id = o.property_id WHERE o.offer_date < p.created_at::date"
      },
      {
        "name": "An agent's spell at an agency ends after it starts",
        "sql": "SELECT count(*) AS violations FROM agent_agencies WHERE end_date < start_date"
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        "name": "Sale prices are between $85,000 and $2,400,000",
        "sql": "SELECT count(*) AS violations FROM transactions WHERE sale_price NOT BETWEEN 85000 AND 2400000"
      },
      {
        "name": "Each property type and payment method appears once",
        "sql": "SELECT (SELECT count(*) - count(DISTINCT type_name) FROM property_types) + (SELECT count(*) - count(DISTINCT method_name) FROM payment_methods) AS violations"
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}