Add blosc compression

2020-07-24 17:44:29 +02:00
parent 0f08addfbe
commit 3171ad33b7
3 changed files with 3 additions and 1 deletions
--- a/freqtrade/data/history/hdf5datahandler.py
+++ b/freqtrade/data/history/hdf5datahandler.py
@@ -139,7 +139,7 @@ class HDF5Handler(IDataHandler):
                     column sequence as in DEFAULT_TRADES_COLUMNS
        """
        key = self._pair_trades_key(pair)
-        ds = pd.HDFStore(self.filename_trades, mode='a', complevel=9)
+        ds = pd.HDFStore(self.filename_trades, mode='a', complevel=9, complib='blosc')
        ds.put(key, pd.DataFrame(data, columns=DEFAULT_TRADES_COLUMNS),
               format='table', data_columns=['timestamp'])
        ds.close()