support cockroachdb.

lnbits/commands.py

@@ -5,7 +5,7 @@ import importlib
 import re
 import os
 
-from .db import SQLITE, POSTGRES
+from .db import SQLITE, POSTGRES, COCKROACH
 from .core import db as core_db, migrations as core_migrations
 from .helpers import (
     get_valid_extensions,
@@ -83,7 +83,7 @@ async def migrate_databases():
             exists = await conn.fetchone(
                 "SELECT * FROM sqlite_master WHERE type='table' AND name='dbversions'"
             )
-        elif conn.type == POSTGRES:
+        elif conn.type in {POSTGRES, COCKROACH}:
             exists = await conn.fetchone(
                 "SELECT * FROM information_schema.tables WHERE table_name = 'dbversions'"
             )