gistfile1.txt

+--+----------+---------------+-------+---------+
|id| source_id| destination_id| amount| currency|
+--+----------+---------------+-------+---------+
|t1|    b1    |     b2        |  780  |  USD    |
|t2|    b3    |     b4        |  9900 |  CAD    |
+--+----------+---------------+-------+---------+

+-------+-----------------+---------------------+                                            
|  id   |    status       |    transaction_id   | 
+-------+-----------------+---------------------+
|  1    |  opened         |      t1             | 
|  2    |  unverified     |      t1             | 
|  3    |  processing     |      t1             | 
|  4    |  succeeded      |      t1             | 
|  1    |  opened         |      t2             | 
|  1    |  unverified     |      t2             | 
+-------+-----------------+---------------------+