openyxdb 1.0.0

Read and write Alteryx YXDB files

OpenYXDB

Read and write Alteryx YXDB files from Python and C++.

Built on Alteryx's official open-source YXDB implementation, released under GPLv3. This fork modernizes the build system, fixes bugs, adds cross-platform support, and wraps the C++ core in a Python package with first-class PyArrow, Pandas, and Polars integration.

What changed from the Alteryx original

• Cross-platform support -- builds and runs on Linux, macOS, and Windows (the original targeted Windows only)
• Python bindings via nanobind, published to PyPI as openyxdb
• PyArrow, Pandas, and Polars read/write integration with automatic type mapping
• Bug fixes -- block index was never written to disk (broke files with more than 65,536 records), reference-counting crash on GCC
• Modern CMake (3.20+, target-based), pixi for dependency management, Catch2 test suite, GitHub Actions CI

What is YXDB?

YXDB is the native binary format used by Alteryx Designer. It is row-oriented: each file contains UTF-16 XML metadata describing the schema, followed by LZF-compressed blocks of records, and a block index at the end for random access.

This library supports E1 (non-AMP) YXDB files only.

Install

pip install openyxdb

Usage

import openyxdb

# Read to PyArrow, Pandas, or Polars
table = openyxdb.read_arrow("data.yxdb")
df = openyxdb.read_pandas("data.yxdb")
df = openyxdb.read_polars("data.yxdb")

# Write from any of them
openyxdb.from_polars(df, "output.yxdb")
openyxdb.from_pandas(df, "output.yxdb")
openyxdb.from_pyarrow(table, "output.yxdb")

All 17 YXDB field types are supported: Bool, Byte, Int16, Int32, Int64, FixedDecimal, Float, Double, String, WString, V_String, V_WString, Date, Time, DateTime, Blob, and SpatialObj.

Building from source

pixi install
pixi run build
pixi run test

Limitations

• Spatial indexes are skipped on read and not created on write.
• Spatial objects are accessible only as raw blobs (SHP-encoded binary).
• Little-endian architectures only (x86, ARM).

License

GPLv3 -- see LICENSE.