81 lines
3.0 KiB
SQL
81 lines
3.0 KiB
SQL
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-- Ledgerline schema. Idempotent: safe to run against an existing database.
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-- Index policy is deliberate -- see docs/phase-0-base-project-spec.md §5.
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-- Do NOT add transactions(account_id, created_at) or transactions(category_id)
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-- here; those live in db/optional_indexes.sql, applied only by `make fix-index`.
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CREATE EXTENSION IF NOT EXISTS pg_stat_statements;
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CREATE TABLE IF NOT EXISTS accounts (
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id UUID PRIMARY KEY,
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holder_name TEXT NOT NULL,
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currency CHAR(3) NOT NULL,
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balance_minor BIGINT NOT NULL,
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is_hot BOOLEAN NOT NULL DEFAULT FALSE,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS merchant_categories (
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id SMALLINT PRIMARY KEY,
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code TEXT NOT NULL UNIQUE,
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label TEXT NOT NULL,
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risk_weight NUMERIC(3,2) NOT NULL
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);
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CREATE TABLE IF NOT EXISTS transactions (
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id UUID PRIMARY KEY,
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account_id UUID NOT NULL,
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kind TEXT NOT NULL,
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amount_minor BIGINT NOT NULL,
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currency CHAR(3),
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merchant_name TEXT,
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category_id SMALLINT,
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status TEXT NOT NULL,
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risk_score NUMERIC(4,3),
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created_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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-- Parallel workers otherwise let a plain sequential scan of this table
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-- compete with an index scan on raw CPU parallelism for higher-selectivity
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-- accounts (e.g. the 5 hot ones, each ~6-8% of all rows) -- masking exactly
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-- the missing-index pathology this table's index policy (README §5) exists
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-- to demonstrate. Scoped to this one table, not a database-wide setting.
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ALTER TABLE transactions SET (parallel_workers = 0);
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CREATE TABLE IF NOT EXISTS sanctions_entries (
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id SERIAL PRIMARY KEY,
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normalized_name TEXT NOT NULL,
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country CHAR(2),
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list_source TEXT,
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added_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS notifications (
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id UUID PRIMARY KEY,
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transaction_id UUID NOT NULL,
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channel TEXT NOT NULL,
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status TEXT NOT NULL,
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attempts INT NOT NULL DEFAULT 0,
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sent_at TIMESTAMPTZ
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);
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CREATE TABLE IF NOT EXISTS audit_events (
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id BIGSERIAL PRIMARY KEY,
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transaction_id UUID NOT NULL,
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event_type TEXT NOT NULL,
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payload JSONB,
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recorded_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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-- Not part of the base spec's domain model: a single-row table the seed
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-- script writes its summary manifest into, so both `scripts/smoke.py` and
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-- the test suite can read back what a given seed run actually produced
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-- (row counts, hot/sanctioned/poison account ids, the SEED value used)
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-- without re-deriving it via ad-hoc queries.
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CREATE TABLE IF NOT EXISTS seed_manifest (
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id SMALLINT PRIMARY KEY DEFAULT 1,
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data JSONB NOT NULL
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);
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CREATE INDEX IF NOT EXISTS accounts_holder_name_idx ON accounts (holder_name);
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CREATE INDEX IF NOT EXISTS sanctions_entries_normalized_name_idx ON sanctions_entries (normalized_name);
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