feat(gfql): polars-native connected OPTIONAL MATCH (fixes pandas-ism crash + unseeded-arm dispatch + polars join twin)#1736

Merged

lmeyerov merged 6 commits into

fix/gfql-optional-match-polars-frames

Jul 19, 2026

Commits on Jul 19, 2026

fix(gfql): engine-polymorphic OPTIONAL MATCH seed extraction (polars crash -> works/honest-NIE)

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feat(gfql): polars-native connected OPTIONAL MATCH (unseeded-arm dispatch + polars join twin)

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feat(gfql): lower simple-CASE null-literal equality on polars (CASE x WHEN null -> is_null)

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perf(gfql): prune polars OPTIONAL MATCH arm via first-alias id-membership (9.2x on LDBC IS7)

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test(gfql): amplify polars OPTIONAL MATCH coverage (review)

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ci(polars): run optional-match polars tests in the polars lane (changed-line gate)

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