pqbench/pqbench

pqbench bytemass examples/quickstart.parquet --format table (README/docs getting-started documented command) prints per-column byte masses: id INT64 102 bytes, year INT32 68 bytes, 8 rows, 2 columns

cd <host-path> && git log -1 --format=%H 2>/dev/null; ls -la; cat README* 2>/dev/null | head -200
cd <host-path> && grep -n -i "mcp\|^## \|^### " README.md | head -80; cat .coldpass/probe.json 2>/dev/null; ls <host-path>; which cargo rustc python3 curl; ls ~/.cargo/bin 2>/dev/null
cd /tmp && export NODE_USE_ENV_PROXY=1; curl -LsSf https://github.com/pqbench/pqbench/releases/latest/download/pqbench-cli-installer.sh | sh 2>&1 | tail -20; ls -la ~/.cargo/bin/ 2>/dev/null | head; ~/.cargo/bin/pqbench --version 2>&1
cd <host-path> && ls data/samples/delta_byte_array.parquet && ~/.cargo/bin/pqbench bytemass data/samples/delta_byte_array.parquet --format table; echo rc=$?; cat <host-path> | head -80
cd <host-path> && ls -la data/samples/ crates/pqbench-cli/tests/fixtures/ 2>&1 | head -30; file data/samples/*.parquet 2>/dev/null; head -c 120 data/samples/delta_byte_array.parquet | xxd | head -3; cat .gitattributes
cd <host-path> && ls -la examples/; head -c 8 examples/quickstart.parquet | xxd; grep -rn "quickstart" README.md docs/*.md docs/**/*.md 2>/dev/null | head; cat crates/pqbench-cli/tests/fixtures/small_reddit_none.parquet | head -c 80
cd <host-path> && ~/.cargo/bin/pqbench bytemass examples/quickstart.parquet --format table; echo rc=$?; sed -n 36,60p docs/getting-started.md
cd <host-path> && mkdir -p .coldpass && cat > .coldpass/probe.json <<'EOF'
{"kind":"cli","argv":["<host-path>"}
EOF
cat > .coldpass/report.json <<'EOF'
{"outcome":"working","operation":"pqbench bytemass examples/quickstart.parquet --format table (README/docs getting-started documented command) prints per-column byte masses: id INT64 102 bytes, year INT32 68 bytes, 8 rows, 2 columns","operation_scope":"CLI footer-only read of a local parquet sample. Not exercised: remote catalog walk (needs PQB_ENDPOINT/PQB_TOKEN Databricks credentials), s3:// (aws feature), delta/iceberg lakehouse (make lakehouse), viz.","steps":["Read README.md Quick start","curl -LsSf https://github.com/pqbench/pqbench/releases/latest/download/pqbench-cli-installer.sh | sh (installed pqbench 0.0.2 to ~/.cargo/bin/pqbench)","pqbench bytemass examples/quickstart.parquet --format table (rc 0)"],"deviations":["README README bytemass examples data/samples/delta_byte_array.parquet and crates/pqbench-cli/tests/fixtures/small_reddit_none.parquet are git-lfs pointer files (~130 bytes, 'version https://git-lfs.github.com/spec/v1') not real parquet; pqbench failed with 'Corrupt footer'. Used examples/quickstart.parquet, which is a real blob, per docs/getting-started.md instead.","Installer was not on PATH; used absolute path <host-path>","No cargo/rust toolchain was needed; prebuilt release binary used."],"stuck_step":null,"main_blocker":null,"suggested_fix":null}
EOF
python3 -m json.tool .coldpass/probe.json >/dev/null && python3 -m json.tool .coldpass/report.json >/dev/null && echo json_ok; <env-var>=<host-path> python3 -I <host-path> --validate; echo rc=$?
cd <host-path> && sed -i 's/README README bytemass/README bytemass/' .coldpass/report.json && python3 -m json.tool .coldpass/report.json >/dev/null && <env-var>=<host-path> python3 -I <host-path> --validate