lance-format/lance

Test which Arrow and Pandas datatypes are supported in write APIs

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#878 opened on May 18, 2023

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Description

Would be good to maintain unit tests that cover all the data types and understand roundtrip behavior.

Create two unit tests: one for PyArrow types and one for Pandas types. For each, create a table/DataFrame where there is one column for each possible data type. Verify the table can be roundtripped. If there are any that don't roundtrip, comment them out and create a new GitHub issue to track support for the data type.

Contributor guide

Research direction
Identify all data types in PyArrow and Pandas, write roundtrip tests for each, comment out unsupported types, and file separate issues for them.
Tech stack
pythonrustpandas
Domain
databackend
Issue type
Test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonPyArrowPandasTesting frameworks (e.g., pytest)
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70