BigQuery Migration Validator

The validation tool compares a source table with its migrated BigQuery table. It runs in two halves:

1. Client (this machine): Reads the config, queries the source database, and stages a row sample, source aggregates, and run metadata in Cloud Storage. It then starts a BigQuery Migration workflow for each table and exits.
2. Backend (Google Cloud, asynchronous): Loads the staged sample into BigQuery, compares it with the target table, and writes the results to BigQuery and Cloud Storage.

Results do not exist when the command exits. Wait for the workflow to finish before reading them (Section 4).

Usage attribution