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Move perf-benchmark CODE out of pygraphistry into pyg-bench; keep only contract-validated RESULTS for docs

Status: Open.

#1827 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL: two-hop count returns a STALE answer after in-place frame mutation (degree-count memo setattrs onto the caller's Plottable, keyed by id() — the BLOCKER-1 pattern the same file forbids)

Status: Open.

#1825 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL: Cypher OLAP fast paths silently run on CPU under engine='polars-gpu' (bare LazyFrame.collect() bypasses the GPU-or-error contract)

Status: Open.

#1824 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

polars 1.35.2 (RAPIDS 26.02 image) rust-panics on grouped min/max over Categorical — a pyo3 PanicException no GFQL wrapper can catch

Status: Open.

#1822 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

OLAP single-hop grouped fast path: sole min()/max() won't lower, shape is fast-path-only, and pandas branch returns mixed dtypes

Status: Open.

#1821 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL accepts sum()/avg() over BOOLEAN, which Cypher rejects — extension or conformance gap?

Status: Open.

#1820 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

Three merged perf changes (#1782, #1783, #1784) have no test that fails if they are wrong

Status: Open.

#1810 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL: a DANGLING DESTINATION is matched by pandas/cuDF and dropped by polars — silent cross-engine divergence

Status: Open.

#1808 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL: native polars bindings builder ignores rows(alias_prefilters=...) — 5 rows on pandas/cuDF vs 12 on polars

Status: Open.

#1804 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL: indexed bindings bypass never engages on engine='polars-gpu' (silent loss of the index path)

Status: Open.

#1803 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

GFQL: pandas vs polars silently disagree on toUpper/toLower under pandas>=3 (simple vs full Unicode case mapping)

Status: Open.

#1802 In graphistry/pygraphistry;

· lmeyerov opened on Jul 28, 2026

cuDF silently diverges from the pandas oracle on seeded undirected degenerate var-length (a {p:v})-[*1..1]-(b)

Status: Open.

#1798 In graphistry/pygraphistry;

· lmeyerov opened on Jul 27, 2026