v1.0.0

What's Changed

• feat: test suites, integration tests, resolve python 3.8 support by Miles Cole (@mwc360) in #70
  • Migrated build system to hatchling and UV; added uv.lock and .python-version
  • Pinned fsspec==2025.2.0 to restore Python 3.8 support
  • Added from future import annotations across engine and benchmark files to fix TypeError on lowercase generic
    hints in Python 3.8/3.9
  • Added .github/copilot-instructions.md with LLM-friendly codebase overview
  • New integration test suite covering all 5 engines × 4 benchmarks (TPC-H, TPC-DS, ClickBench, ELTBench) at SF 0.1
  • Added Daft and Polars support for ClickBench
  • Fixed DaftELTBench: Windows path handling, when().otherwise() replacing deprecated if_else, .year() API, .collect() over .to_pandas()
  • Fixed DuckDB ELTBench: .df() → .arrow() (no pandas dependency)
  • Fixed Spark ELTBench CREATE OR REPLACE TABLE → DROP IF EXISTS + CREATE TABLE to avoid OverwriteByExpression truncation error
  • Fixed Spark ELTBench MERGE: SQL MERGE INTO → DeltaTable.forName().merge() Python API to work around DELTA_MERGE_RESOLVED_ATTRIBUTE_MISSING_FROM_INPUT on local delta-spark 3.2
  • Fixed TPC-DS q90 divide-by-zero: added NULLIF(pmc, 0) in denominator for SF 0.1 runs
  • Fixed Polars TPC-DS decimal overflow (PanicException): pre-collect cast of Decimal columns to Float64(strict=False)
  • Added delta-spark==3.2.0 to the spark extra
  • Auto-generated per-engine coverage reports written to reports/coverage/.md after each test session
  • New baseline unit tests for path utils, query utils, and engine — matrix runs across Python 3.8–3.12
  • CI: integration tests run once on Python 3.11 per engine in isolated jobs
• chore: bump version by Miles Cole (@mwc360) in #71

Full Changelog: v0.13.3...v1.0.0