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Extension repository on GitHub

Extension descriptor (YAML)

Explore Zarr stores with SQL through relational metadata, chunk discovery, and dense cell scans

Installing and Loading

INSTALL duckdb_zarr FROM community;
LOAD duckdb_zarr;

Example

INSTALL duckdb_zarr FROM community;
LOAD duckdb_zarr;

SELECT * FROM zarr_groups('test/data/simple_v2.zarr');
SELECT * FROM zarr_arrays('test/data/simple_v2.zarr');
SELECT * FROM zarr_chunks('test/data/simple_v2.zarr');
SELECT * FROM zarr('test/data/simple_v2.zarr', 'temperature');

About duckdb_zarr

The duckdb_zarr extension exposes Zarr stores through DuckDB table functions.

Current coverage includes:

• store discovery for local Zarr v2 and v3 layouts
• consolidated metadata support for remote http://, https://, and s3:// stores
• group, array, and chunk enumeration with zarr_groups(), zarr_arrays(), and zarr_chunks()
• dense numeric cell scans with zarr_cells() and the zarr() convenience alias

This makes it practical to inspect Zarr metadata and query supported dense arrays with SQL directly inside DuckDB.

Added Functions

Overloaded Functions

This extension does not add any function overloads.

Added Types

This extension does not add any types.

Added Settings

This extension does not add any settings.