Archery v0.1.0

Archery v0.1.0 Release Notes

We're excited to announce the initial release of Archery, a Go library that provides a user-friendly interface to the Apache Arrow compute package.

Overview

Archery v0.1.0 provides a comprehensive set of functions for working with Arrow arrays, including arithmetic operations, filtering, aggregation, sorting, and comparison. This release focuses on providing a solid foundation with implementations for the most commonly used functions.

Features

Arithmetic Operations

• Basic operations: addition, subtraction, multiplication, division
• Mathematical functions: power, square root, absolute value, sign, negation

Filtering Operations

• Filter by mask, greater than, less than, equal to, not equal to
• Filter between values, by multiple of, in a set, non-null values
• Custom filtering with boolean masks

Aggregation Operations

• Statistical functions: sum, mean, min, max, variance, standard deviation
• Count operations: total count, non-null count
• Percentile functions: quantile, median

Sorting Operations

• Sort arrays in ascending or descending order
• Get indices that would sort an array
• Extract elements by position (take)
• Find nth element in sorted order
• Calculate ranks of elements
• Remove duplicates (unique values)

Comparison Operations

• Equality and inequality comparisons
• Greater than, less than comparisons
• Logical operations: and, or, not

Implementation Notes

• Functions are implemented to handle common Arrow data types: Int64, Float64, and String
• Null values are properly handled throughout the library
• Custom implementations are provided for functions not available in the underlying compute package
• All functions follow a consistent API pattern for ease of use