Backfill Without Duplicate Records

A workflow failure leaves a gap or bad data in a pipeline. You need to rerun the affected range, correct records, and avoid creating duplicates in raw or downstream tables.

Problem

A workflow failure leaves a gap or bad data in a pipeline. You need to rerun the affected range, correct records, and avoid creating duplicates in raw or downstream tables.

What this tests

Idempotent writes and replay-safe design
Backfill orchestration and auditability
Data quality gates before promotion
Deduplication in raw and curated layers

Example pipeline context

Quality·Great ExpectationsStorage·Amazon S3 and SnowflakeProcessing·Apache Spark 3.5Orchestration·Apache Airflow 2.8Transformations·dbt incremental models

Problem

A workflow failure leaves a gap or bad data in a pipeline. You need to rerun the affected range, correct records, and avoid creating duplicates in raw or downstream tables.

What this tests

Idempotent writes and replay-safe design
Backfill orchestration and auditability
Data quality gates before promotion
Deduplication in raw and curated layers

Example pipeline context

Quality·Great ExpectationsStorage·Amazon S3 and SnowflakeProcessing·Apache Spark 3.5Orchestration·Apache Airflow 2.8Transformations·dbt incremental models

Problem

A workflow failure leaves a gap or bad data in a pipeline. You need to rerun the affected range, correct records, and avoid creating duplicates in raw or downstream tables.

What this tests

Idempotent writes and replay-safe design
Backfill orchestration and auditability
Data quality gates before promotion
Deduplication in raw and curated layers

Example pipeline context

Quality·Great ExpectationsStorage·Amazon S3 and SnowflakeProcessing·Apache Spark 3.5Orchestration·Apache Airflow 2.8Transformations·dbt incremental models

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Backfill Without Duplicate Records

Problem

What this tests

Example pipeline context

Problem

What this tests

Example pipeline context