100 lines
4.9 KiB
YAML
100 lines
4.9 KiB
YAML
# Human-authored augmentation for the BIRD `financial` dataset.
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#
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# The warehouse STRUCTURE (tables/columns/types/nullability) is extracted
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# from Postgres into extracted_schema.json by `make recon`. This file only
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# carries what humans add on top: table/column descriptions and relationships.
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# (Metrics live in metrics.yaml.)
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#
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# Format:
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# tables.<name>: one-line description.
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# columns.<table>.<col>: one-line description. Sparse — only the ones
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# worth describing. Undescribed columns just have
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# no description in the recon.
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# relationships: declared FKs (BIRD ships SQLite without them).
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schema: financial
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tables:
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account: One row per bank account. The pivot table — most facts hang off account_id.
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client: One row per bank customer.
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disp: Disposition — many-to-many link between client and account. Type tells you whether the client is the OWNER or just a USER of the account.
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district: Demographic and economic data for each Czech district. The A-columns are infamous — most analysis questions referencing demographics use these.
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loan: One row per loan granted to an account.
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card: One row per credit/debit card issued to a disposition.
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trans: Transaction history. Largest table by far (~1M rows). Every credit, debit, transfer.
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order: Standing payment orders (recurring debits). Note the table name collides with a SQL keyword and must be quoted.
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columns:
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account.district_id: Geographic district the account belongs to (joins to district).
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account.frequency: Statement issuance frequency. "POPLATEK MESICNE" = monthly, "POPLATEK TYDNE" = weekly, "POPLATEK PO OBRATU" = on transaction.
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account.date: Date the account was opened.
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client.gender: '"M" or "F". Derived from birth_number.'
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client.birth_date: Date of birth, normalised. Original birth_number encoded gender by adding 50 to the month field for women.
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client.district_id: District the client lives in (joins to district).
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disp.client_id: Joins to client.
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disp.account_id: Joins to account.
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disp.type: '"OWNER" or "DISPONENT" (USER). Only owners can request loans / cards.'
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district.A2: District name.
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district.A3: Region (a grouping of districts).
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district.A4: Number of inhabitants.
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district.A5: Number of municipalities with population < 499.
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district.A6: Number of municipalities with population 500-1999.
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district.A7: Number of municipalities with population 2000-9999.
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district.A8: Number of municipalities with population > 10000.
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district.A9: Number of cities.
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district.A10: Ratio of urban inhabitants (percent).
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district.A11: Average salary (in CZK).
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district.A12: Unemployment rate in 1995 (percent). NULL means missing data.
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district.A13: Unemployment rate in 1996 (percent).
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district.A14: Number of entrepreneurs per 1000 inhabitants.
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district.A15: Number of crimes committed in 1995. NULL means missing data.
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district.A16: Number of crimes committed in 1996.
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loan.account_id: The account the loan was granted to.
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loan.date: Date the loan was granted.
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loan.amount: Total amount of the loan (CZK).
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loan.duration: Loan duration in months.
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loan.payments: Monthly payment (CZK).
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loan.status: Loan status code. "A" = contract finished, no problems. "B" = contract finished, loan not paid (DEFAULT). "C" = running contract, payments on time. "D" = running contract, client in debt (AT RISK).
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card.disp_id: The disposition (and via it, the account) the card belongs to.
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card.type: '"junior", "classic", or "gold".'
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card.issued: Date the card was issued.
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trans.account_id: The account the transaction belongs to.
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trans.date: Transaction date.
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trans.type: '"PRIJEM" (credit) or "VYDAJ" (debit).'
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trans.operation: Mode of operation, e.g. "VKLAD" (cash credit), "VYBER" (cash withdrawal), "PREVOD Z UCTU" (transfer from another bank).
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trans.amount: Amount (CZK).
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trans.balance: Account balance after the transaction.
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trans.k_symbol: Characterisation of the payment. "POJISTNE" = insurance, "SLUZBY" = household, "UROK" = interest credited, "SANKC. UROK" = penalty interest, "SIPO" = household payment, "DUCHOD" = old-age pension, "UVER" = loan payment.
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trans.bank: Counterparty bank code (only set for inter-bank transfers).
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trans.account: Counterparty account number (only set for inter-bank transfers).
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order.account_id: The originating account.
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order.bank_to: Recipient bank.
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order.account_to: Recipient account.
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order.amount: Order amount (CZK).
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order.k_symbol: Purpose, same vocabulary as trans.k_symbol.
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relationships:
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- from: account.district_id
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to: district.district_id
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- from: client.district_id
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to: district.district_id
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- from: disp.client_id
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to: client.client_id
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- from: disp.account_id
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to: account.account_id
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- from: loan.account_id
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to: account.account_id
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- from: card.disp_id
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to: disp.disp_id
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- from: trans.account_id
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to: account.account_id
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- from: order.account_id
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to: account.account_id
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