note to test

olapy/core/mdx/executor/execute_db.py

@@ -62,6 +62,8 @@ def string_folding_wrapper(results):
             for key in keys
         )
 
+# TODO try pandas.read_sql_table and pandas.read_sql
+
 def _load_tables_db(executer_instance):
     """
     Load tables from database.
@@ -82,6 +84,7 @@ def _load_tables_db(executer_instance):
         results = db.engine.execution_options(stream_results=True).execute('SELECT * FROM "{0}"'.format(table_name))
         # Fetch all the results of the query
         # value = pd.DataFrame(iter(results),columns=results.keys())  # Pass results as an iterator
+        # with string_folding_wrapper we loose response time
         value = pd.DataFrame(string_folding_wrapper(results),columns=results.keys())
         tables[table_name] = value[[
             col for col in value.columns if col.lower()[-3:] != '_id'