Fix (global.db): Consistency with updates

Signed-off-by: OjusWiZard <ojuswimail@gmail.com>

rotkehlchen/globaldb/updates.py

@@ -434,7 +434,14 @@ def _handle_asset_update(
 
         try:
             with connection.savepoint_ctx() as cursor:
-                executeall(cursor, action)
+                if action.strip().startswith('UPDATE') and cursor.execute(
+                    'SELECT COUNT(*) FROM assets WHERE identifier=?',
+                    (remote_asset_data.identifier,),
+                ).fetchone()[0] == 0:
+                    executeall(cursor, full_insert)
+                else:
+                    executeall(cursor, action)
+
                 if local_asset is not None:
                     AssetResolver().clean_memory_cache(identifier=local_asset.identifier)
         except sqlite3.Error:  # https://docs.python.org/3/library/sqlite3.html#exceptions

rotkehlchen/tests/unit/globaldb/test_asset_updates.py

@@ -23,6 +23,8 @@
 """  # noqa: E501
 VALID_ASSETS = """INSERT INTO assets(identifier, name, type) VALUES("MYBONK", "Bonk", "Y"); INSERT INTO common_asset_details(identifier, symbol, coingecko, cryptocompare, forked, started, swapped_for) VALUES("MYBONK", "BONK", "bonk", "BONK", NULL, 1672279200, NULL);
     *
+UPDATE common_asset_details SET coingecko="coingecko-id" where identifier="new-asset";
+INSERT INTO assets(identifier, name, type) VALUES("new-asset", "New Asset", "Y"); INSERT INTO common_asset_details(identifier, symbol, coingecko, cryptocompare, forked, started, swapped_for) VALUES("new-asset", "NEW", "coingecko-id", "", NULL, 1672279200, NULL);
 """  # noqa: E501
 
 
@@ -480,6 +482,9 @@ def test_asset_update(
         assert cursor.execute('SELECT * FROM assets WHERE identifier = "MYBONK"').fetchall() == ([
             ('MYBONK', 'Bonk', 'Y'),
         ] if update_assets else [])
+        assert cursor.execute('SELECT * FROM assets WHERE identifier = "new-asset"').fetchall() == ([
+            ('new-asset', 'New Asset', 'Y'),
+        ] if update_assets else [])
 
         cursor.execute('SELECT * FROM asset_collections WHERE id = 99999999')
         assert cursor.fetchall() == ([