sqldb: add payment sql tables

This does not include duplicate payments yet. They will be added
when the migration code is introduced for payments.

Author: ziggie1984

sqldb/sqlc/migrations/000009_payments.down.sql

@@ -0,0 +1,54 @@
+-- ─────────────────────────────────────────────
+-- Drop custom TLV record tables first (they have no dependents).
+-- ─────────────────────────────────────────────
+
+DROP TABLE IF EXISTS payment_hop_custom_records;
+DROP TABLE IF EXISTS payment_attempt_first_hop_custom_records;
+DROP TABLE IF EXISTS payment_first_hop_custom_records;
+
+-- ─────────────────────────────────────────────
+-- Drop per-hop payload tables before dropping the base hops table.
+-- ─────────────────────────────────────────────
+
+DROP TABLE IF EXISTS payment_route_hop_blinded;
+DROP TABLE IF EXISTS payment_route_hop_amp;
+DROP TABLE IF EXISTS payment_route_hop_mpp;
+
+-- ─────────────────────────────────────────────
+-- Drop route hops table and its indexes.
+-- ─────────────────────────────────────────────
+
+DROP INDEX IF EXISTS idx_route_hops_htlc_attempt_index;
+DROP TABLE IF EXISTS payment_route_hops;
+
+-- ─────────────────────────────────────────────
+-- Drop HTLC attempt resolution table and its indexes.
+-- ─────────────────────────────────────────────
+
+DROP INDEX IF EXISTS idx_htlc_resolutions_type;
+DROP INDEX IF EXISTS idx_htlc_resolutions_time;
+DROP TABLE IF EXISTS payment_htlc_attempt_resolutions;
+
+-- ─────────────────────────────────────────────
+-- Drop HTLC attempts table and its indexes.
+-- ─────────────────────────────────────────────
+
+DROP INDEX IF EXISTS idx_htlc_payment_id;
+DROP INDEX IF EXISTS idx_htlc_attempt_index;
+DROP INDEX IF EXISTS idx_htlc_payment_hash;
+DROP INDEX IF EXISTS idx_htlc_attempt_time;
+DROP TABLE IF EXISTS payment_htlc_attempts;
+
+-- ─────────────────────────────────────────────
+-- Drop payments table and its indexes.
+-- ─────────────────────────────────────────────
+
+DROP INDEX IF EXISTS idx_payments_created_at;
+DROP TABLE IF EXISTS payments;
+
+-- ─────────────────────────────────────────────
+-- Drop payment intents table and its indexes.
+-- ─────────────────────────────────────────────
+
+DROP INDEX IF EXISTS idx_payment_intents_type;
+DROP TABLE IF EXISTS payment_intents;