DuckDB
Extend DuckDB with distributed query execution, partitioned data processing, and scalable compute for large-scale analytics.
Last updated
Was this helpful?
Extend DuckDB with distributed query execution, partitioned data processing, and scalable compute for large-scale analytics.
Last updated
Was this helpful?
is a high-performance, in-process analytical database designed for fast SQL queries on structured data. However, it operates as a single-instance database, limiting its ability to efficiently handle large-scale datasets across multiple machines.
Bacalhau extends DuckDB by enabling:
Distributed query execution across multiple compute nodes
Partitioning of large datasets to optimize processing
Parallel SQL execution for improved performance
Querying data in-place without needing to centralize it
This allows users to scale DuckDB beyond a single node, making it ideal for distributed data processing and large-scale analytics.
While DuckDB is powerful for analytical workloads, it has inherent limitations:
Single-instance execution: DuckDB is designed to run on a single machine, limiting scalability.
No built-in parallelism: Queries run on a single node, unable to take advantage of multiple distributed compute resources.
Inefficient large-scale processing: Large datasets require manual partitioning and splitting across multiple queries.
To address these limitations, Bacalhau integrates with DuckDB and provides:
Partitioned Query Execution: Bacalhau distributes queries across nodes, automatically handling partitioning.
Scalable Data Processing: Users can run SQL queries across large datasets without moving data to a centralized warehouse.
Custom Partitioning Functions: Bacalhau introduces User-Defined Functions (UDFs) that handle partitioning logic natively within DuckDB.
Bacalhau introduces three User Defined Functions (UDF) for partitioning to improve DuckDB's scalability:
Partitions datasets based on a hash function applied to file paths.
Partitions files based on regex pattern matching, useful for structured filenames.
Partitions data based on date patterns in filenames, allowing for time-series data queries.
Run SQL queries across multiple machines without data movement.
Leverage Bacalhau’s job orchestration to distribute and parallelize workloads.
Execute scatter-gather queries where data resides, avoiding centralization bottlenecks.
Process only necessary data partitions instead of querying the entire dataset.
Perform interactive and batch analytics on large-scale datasets.
Use partition-aware querying to speed up data retrieval and reduce costs.
Imperative (CLI):
Declarative (YAML):
Distributed Query Execution
Run queries in parallel across multiple compute nodes.
Automatic Partitioning
Use built-in UDFs to efficiently split workloads.
No Data Movement
Process data where it resides, avoiding costly transfers.
Scalable Analytics
Execute SQL queries efficiently across large datasets.
Stateless Compute
Run on-demand queries without needing a persistent database server.
To get started with Bacalhau and DuckDB:
Deploy Bacalhau nodes near the data sources.
Submit distributed queries using Bacalhau’s CLI or YAML job definitions.
Leverage partitioning to scale query execution efficiently.
By combining Bacalhau’s distributed execution with DuckDB’s high-performance analytics, users can achieve scalable, efficient, and cost-effective SQL processing across large and distributed datasets.