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Extension descriptor (YAML)

Read HDF5 datasets and attributes

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 include:

• h5_read() table function to read datasets.
• h5_tree() table function to list groups and datasets in a file, optionally including projected attributes.
• h5_attributes() table function to read attributes.
• h5_ls() table and scalar functions to list entries in groups.
• Multiple datasets: Read multiple datasets into separate columns.
• Multi-dimensional arrays: Support for 1D to 4D datasets.
• Projection pushdown: Read only the datasets that are actually needed.
• Index column: Optionally adds an index column that supports predicate pushdown of constant range filters (>, <=, BETWEEN, etc.) for efficient selective reads.
• Reads datasets that are larger than memory.
• Remote reads over HTTPS, S3, etc., via the DuckDB httpfs extension.
• Remote reads over SFTP via a built-in SFTP client.
• Globbing: Combine datasets from multiple files vertically (UNION ALL).

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

Added Functions

Overloaded Functions

This extension does not add any function overloads.

Added Types

This extension does not add any types.

Added Settings