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A DuckDB extension for reading HDF5 files.

Installing and Loading

INSTALL h5db FROM community;
LOAD h5db;

Example

FROM h5_read('file.h5', '/some/dataset', '/another');

About h5db

This extension provides functions for reading data and metadata from HDF5 files.

Features:

• h5_tree() table function for listing groups and datasets in the file.
• h5_read() table function for reading datasets.
• h5_attributes() table function for accessing attributes.
• Multiple datasets: Read and combine multiple datasets in a single query.
• Multi-dimensional arrays: Support for 1D-4D datasets.
• Projection pushdown: Only reads datasets that are actually needed.
• Index column: Optionally adds an index column that supports pushing down constant "range" like filters (>, <=, BETWEEN, etc), to allow efficient selective reads from datasets.
• Can read datasets that are larger than memory.

For full documentation see: https://github.com/jokasimr/h5db.

Added Functions