tapdb: add supply syncer log table

Add a new table to track the latest synced block height for the supply
syncer. This enables resuming syncing from a consistent point and helps
monitor the current sync state.

Author: ffranr

tapdb/migrations.go

@@ -24,7 +24,7 @@ const (
 	// daemon.
 	//
 	// NOTE: This MUST be updated when a new migration is added.
-	LatestMigrationVersion = 43
+	LatestMigrationVersion = 44
 )
 
 // DatabaseBackend is an interface that contains all methods our different

tapdb/sqlc/migrations/000044_supply_syncer_log.down.sql

@@ -0,0 +1,3 @@
+-- Drop the supply_syncer_log table and its index.
+DROP INDEX IF EXISTS supply_syncer_log_group_key_idx;
+DROP TABLE IF EXISTS supply_syncer_log;

tapdb/sqlc/migrations/000044_supply_syncer_log.up.sql

@@ -0,0 +1,16 @@
+-- Table to track the latest synced block height for supply syncers per asset
+-- group.
+CREATE TABLE supply_syncer_log (
+    id INTEGER PRIMARY KEY,
+
+    -- The tweaked group key identifying the asset group this sync log belongs
+    -- to. This should match the group_key format used in universe_supply_roots.
+    group_key BLOB UNIQUE NOT NULL CHECK(length(group_key) = 33),
+
+    -- The latest block height that has been successfully synced for this asset
+    -- group.
+    latest_sync_block_height INTEGER NOT NULL
+);
+
+-- Add index for frequent lookups by group key.
+CREATE INDEX supply_syncer_log_group_key_idx ON supply_syncer_log(group_key);

tapdb/sqlc/models.go

@@ -881,6 +881,20 @@ CREATE INDEX supply_commitments_chain_txn_id_idx ON supply_commitments(chain_txn
 
 CREATE INDEX supply_commitments_group_key_idx ON supply_commitments(group_key);
 
+CREATE TABLE supply_syncer_log (
+    id INTEGER PRIMARY KEY,
+
+    -- The tweaked group key identifying the asset group this sync log belongs
+    -- to. This should match the group_key format used in universe_supply_roots.
+    group_key BLOB UNIQUE NOT NULL CHECK(length(group_key) = 33),
+
+    -- The latest block height that has been successfully synced for this asset
+    -- group.
+    latest_sync_block_height INTEGER NOT NULL
+);
+
+CREATE INDEX supply_syncer_log_group_key_idx ON supply_syncer_log(group_key);
+
 CREATE TABLE supply_update_events (
     event_id INTEGER PRIMARY KEY,