Delta File

Below is the sample delta files downloaded using Download_Only function in FDSLoader.

We have included all files, except for files containing "prices" word in file name, in collecting the unique fsym_ids.

80,628 fsym_ids are collected for attached file.

Fsym_ids collection algorithm

1. Run FDSLoader in Download_Only mode and wait while it finish.
2. Take zip file in zip folder and unzip it.
3. Open txt files which ends with '_update.txt' and not contains 'prices' in filenames.
4. Read files as csv and try find FSYM_ID column. If found store the fsym_id values into temp list.
5. Do steps 2-4 for each zip files in zip folder.
6. Apply DISTINCT rule for resulted list to avoid duplications.
7. Move all files from zip folder to some storage.