A data lakehouse is a modern data architecture that combines the best features of a data lake and a data warehouse. It enables organizations to store vast amounts of raw data (like a lake) while supporting the structure, performance, and reliability of a warehouse — all in a single platform.
This hybrid approach allows data engineers and analysts to work with structured, semi-structured, and unstructured data for analytics, machine learning, and BI — without needing to maintain separate systems.
Why Was the Data Lakehouse Invented?
Traditional data lakes offer flexibility and scalability but lack strong data governance, consistency, and query performance. Warehouses, on the other hand, provide speed and structure but are limited in handling diverse data types and big data scale.
A data lakehouse bridges these gaps by introducing features like:
- Schema enforcement: Support for structured data models
- ACID transactions: Reliable, consistent data operations
- Unified storage: Raw and curated data in one place
- High-performance querying: SQL engines for analytics and BI
Key Components of a Data Lakehouse
- Cloud object storage: Data is stored in formats like Parquet, Delta, or ORC
- Metadata layer: Organizes data with schemas and tables
- Transaction support: Ensures consistency during writes and updates
- Query engines: Enable fast, SQL-based analytics (e.g., Presto, Databricks SQL, DuckDB)
- ML/AI integration: Compatible with machine learning tools like Spark or TensorFlow
Data Lake vs. Warehouse vs. Lakehouse
| Feature | Data Lake | Data Warehouse | Data Lakehouse |
|---|---|---|---|
| Data Types | Structured, semi-, unstructured | Structured only | All types |
| Performance | Low (without tuning) | High | High |
| ACID Compliance | No | Yes | Yes |
| Storage Costs | Low | High | Moderate |
| Use Cases | Data science, raw storage | BI, reporting | Unified analytics & ML |
Benefits of a Data Lakehouse
- Single platform: No need to duplicate data between lake and warehouse
- Cost-efficiency: Store raw and structured data in affordable object storage
- Advanced analytics: Power both BI dashboards and ML pipelines
- Data consistency: With ACID transactions and schema enforcement
- Scalability: Handle petabytes of data efficiently
Popular Data Lakehouse Platforms
| Platform | Technology Base | Highlights |
|---|---|---|
| Databricks | Apache Spark + Delta Lake | Unified lakehouse with strong ML/AI support |
| Delta Lake | Open-source table format | Brings ACID transactions to data lakes |
| Apache Iceberg | Open table format | Supports large-scale analytics and schema evolution |
| Amazon Redshift Spectrum | S3 + Redshift | Queries data in data lakes using Redshift SQL |
| Snowflake | Cloud-native | Supports semi-structured data and external tables |
How ClicData Integrates with Data Lakehouses
ClicData helps bring the value of a data lakehouse to business users by enabling seamless connectivity to structured outputs and curated views stored in your lakehouse architecture. With ClicData, you can:
- Connect to external tables in platforms like Snowflake, Redshift, BigQuery, or PostgreSQL
- Visualize structured results from tools like Databricks or Delta Lake
- Create dashboards, KPIs, and reports from lakehouse datasets
- Automate data refreshes and deliver insights in real time
If your data stack includes a lakehouse, ClicData makes it easier to bridge technical insights with business decisions — with powerful, visual analytics for any team.