Mismatch in scanned row count from DynamoDB database

[nareshz]

Issue

The number of rows scanned while performing migration doesn't match with the actual number of rows present in the DynamoDB database.

Steps which led to the Problem

1. Dynamodb database table consisted of 11500 rows.
   
2. Performed bulk migration using HarbourBridge.
3. Only 4511 rows were scanned for writing to Cloud Spanner.
   
   Note: This statement was only printed to debug and not printed while performing actual migration.