-- 022_DropPeriodNameUniqueConstraint.sql
-- Fixes multi-tenant issue where multiple companies can have periods with same name.
-- The Ledger's accounting_periods table had a global unique constraint on 'name',
-- but in a multi-tenant system each company needs their own "2025", "2026" etc. periods.

DO $$
BEGIN
    IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'accounting_periods') THEN
        ALTER TABLE accounting_periods DROP CONSTRAINT IF EXISTS uq_period_name;
    END IF;
END $$;