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docs/tasks/order_liabilities_compact.md

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+## Compact order liabilities using Stored Procedure
+
+Submit and cancel order processes create 4 records in the liabilities table (classic bots behaviour).
+Because of those processes liabilities table can grow to significant sizes.
+
+Compaction job will process liabilities for the previous week (by default) group them by code, currency_id, and date:
+
+```sql
+GROUP BY code, currency_id, member_id, DATE(`created_at`)
+```
+
+Due to the size of the liabilities table, it is recommended to run this job every day.
+
+For process order liabilities compaction job:
+
+```bash
+bundle exec rake job job:liabilities:compact_orders
+```
+
+It will compact liabilities for orders from previous week. Also you can specify timerange (e.g.):
+
+```bash
+bundle exec rake job job:liabilities:compact_orders['2020-12-09 00:00:00','2020-12-10 00:00:00']
+```
+
+New DB Job record:
+
+| Column | Value |
+|--------|-------|
+| id | 8 |
+| name | compact_orders |
+| pointer | 1607603942 |
+| counter | 6675 |
+| data | nil |
+| error_code | 0 |
+| error_message | nil |
+| started_at | Thu 10 Dec 2020 13:39:02 CET +01:00 |
+| finished_at | Thu 10 Dec 2020 13:39:28 CET +01:00 |