feat(ibis): dialect-agnostic IbisBackend.add_columns (additive schema evolution) - #90

Merged

discreteds merged 7 commits into

feature/dialect-aware-add-columns

Jun 28, 2026

Commits on Jun 28, 2026

docs: dialect-aware add_columns spec + implementation plan

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claude
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bfaf0f5
feat(ibis): add add_columns_hook override seam to DialectSpec
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7c6812c
feat(ibis): add dtype/schema normalization helpers for add_columns
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a8454ae
feat(ibis): generic dialect-agnostic add_columns implementation
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c47d754
feat(ibis): IbisBackend.add_columns with hook-or-generic dispatch
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09d0509
fix(ibis): type-narrow dtype bridge guard so mypy clears _coerce_dtype
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4cdd1ba
test(ibis): final-review polish for add_columns (database happy-path, type asserts, dead-guard cleanup)

discreteds
and
claude
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89e929a