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Introducing chdb Postgres extension: High-performance imports from cloud storage
The new chdb Postgres extension embeds the ClickHouse engine in a helper process to enable high-performance data importing from S3, GCS, and Azure.
What: The chdb extension for PostgreSQL allows users to import/export data in formats like Parquet, Arrow, and Avro from cloud storage. It uses an out-of-process helper app to isolate resource usage from the Postgres backend.
Why it matters: This approach offers a performant, dependency-free alternative to embedding heavy data processing engines directly inside the Postgres process, protecting the database from memory-related instability.
Takeaway: Try chdb if you need to load Parquet or ORC data into Postgres; it supports more formats and typically outperforms standard `aws_s3` extensions.
Decoder
- In-process engine: A data processing engine that runs within the memory space of the main application.
- Out-of-process helper: A separate executable that performs heavy lifting (like data transformation) to isolate memory/resource usage from the parent process.
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