fixed pattern search for meta_data

Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>

planetmint/backend/tarantool/query.py

@@ -262,8 +262,9 @@ def get_txids_filtered(connection, asset_id: str, operation: str = None,
 @register_query(TarantoolDBConnection)
 def text_search(conn, search, table='assets', limit=0):
     pattern = ".{}.".format(search)
+    field_no = 1 if table == 'assets' else 2  # 2 for meta_data
     res = conn.run(
-        conn.space(table).call('indexed_pattern_search', (table, 1, pattern))
+        conn.space(table).call('indexed_pattern_search', (table, field_no, pattern))
     )
     return res[0] if limit == 0 else res[0][:limit]
 

planetmint/backend/tarantool/schema.py

@@ -62,7 +62,7 @@ INDEX_COMMANDS = {
     "meta_data":
         {
             "id_search": "meta_datas:create_index('id_search', { type='hash' , parts={'transaction_id'}})",
-            "text_search": "meta_datas:create_index('secondary', {unique=false,parts={2,'string'}}"
+            "text_search": "meta_datas:create_index('secondary', {unique=false,parts={2,'string'}})"
         },
     "pre_commits":
         {

planetmint/web/views/metadata.py

@@ -46,7 +46,6 @@ class MetadataApi(Resource):
             metadata = planet.text_search(**args)
 
         try:
-            # This only works with MongoDB as the backend
             return list(metadata)
         except OperationError as e:
             return make_error(