No, the message "Flushed checkpoint for stream: Descriptor(namespace=null, name=GA_TOTAL_EVENT_INSIGHT" does not mean the stream will start over completely. Instead, it means that Airbyte has saved the current state (checkpoint) for that stream. This checkpoint allows Airbyte to resume syncing from this point in future runs, rather than starting from the beginning. This is a core part of Airbyte's incremental sync and resumability features, which are designed to avoid re-reading already synced data and to ensure efficient and reliable data replication if a sync is interrupted or fails [Resumability](
https://docs.airbyte.com/platform/using-airbyte/core-concepts#resumability) [Checkpointing state](
https://docs.airbyte.com/platform/connector-development/cdk-python/incremental-stream#checkpointing-state). So, unless there is an error or a configuration that forces a full re-sync, the stream will continue from the last checkpoint, not start over.