books/backend/Books.Api/Database/Migrations/007_BankConnections.sql

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-- Migration: 007_BankConnections
-- Description: Create bank connection read models table for Open Banking integration
CREATE TABLE IF NOT EXISTS bank_connection_read_models (
aggregate_id TEXT PRIMARY KEY,
company_id TEXT NOT NULL,
aspsp_name TEXT NOT NULL,
status TEXT NOT NULL DEFAULT 'initiated',
session_id TEXT,
valid_until TIMESTAMPTZ,
accounts_json TEXT,
failure_reason TEXT,
create_time TIMESTAMPTZ NOT NULL,
updated_time TIMESTAMPTZ NOT NULL,
last_aggregate_sequence_number INT NOT NULL
);
-- Index for efficient queries by company
CREATE INDEX IF NOT EXISTS idx_bank_connection_company
ON bank_connection_read_models(company_id);
-- Index for efficient queries by company and status
CREATE INDEX IF NOT EXISTS idx_bank_connection_company_status
ON bank_connection_read_models(company_id, status);
-- Index for finding active connections (established and not expired)
CREATE INDEX IF NOT EXISTS idx_bank_connection_active
ON bank_connection_read_models(company_id, status, valid_until)
WHERE status = 'established';
COMMENT ON TABLE bank_connection_read_models IS 'Bank connections via Enable Banking Open Banking API';
COMMENT ON COLUMN bank_connection_read_models.status IS 'initiated = OAuth started, established = active connection, failed = authorization failed, disconnected = user disconnected';
COMMENT ON COLUMN bank_connection_read_models.accounts_json IS 'JSON array of available bank accounts from the connection';
COMMENT ON COLUMN bank_connection_read_models.session_id IS 'Enable Banking session ID - used for API calls (not exposed to client)';