lance-format/lance-duckdb

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The lance extensions for DuckDB enable reading and writing of lance tables.

Stars: 126
Forks: 32
Open beginner issues: 0
Indexed issues: 17

Dominant language: C++
License: Apache-2.0
Last GitHub push: Aug 1, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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17 open issues indexed

perf(exec): parallelize exec scan across fragments — design discussion for PR #236 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

lance-format/lance-duckdb#244 · Opened Aug 21, 2026
_rowid point lookup drops valid non-stable row IDs from fragments Open

lance-format/lance-duckdb#239 · 1 assignee · Opened Aug 6, 2026
Performance x2: async I/O like for parquet and CSV Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

lance-format/lance-duckdb#233 · Opened Jul 31, 2026
v1.5.4 osx_amd64 lance extension artifact returns 404 Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

lance-format/lance-duckdb#223 · 1 comment · Opened Jul 4, 2026
ATTACH directory namespace on MinIO still fails with BucketNotFound after #208 Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

lance-format/lance-duckdb#221 · Opened Jun 30, 2026
Allow windows_amd64 builds in CI Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

lance-format/lance-duckdb#214 · Opened May 24, 2026
Segfault when projecting a column written with `lance-encoding:blob` field metadata Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

lance-format/lance-duckdb#212 · Opened May 22, 2026
Read lance tables via lance rest service (Gravitino) via duckdb Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

lance-format/lance-duckdb#209 · Opened May 16, 2026
ATTACH (TYPE LANCE) on a dataset with lance.json (pa.json_()) columns fails with "DuckDB does not support Strings over 4GB" on any query that projects the JSON column Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

lance-format/lance-duckdb#201 · Opened Apr 29, 2026
list_contains / array_contains predicate pushdown silently returns 0 rows on Lance dataset Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

lance-format/lance-duckdb#194 · Opened Apr 20, 2026
Lance is now a core extension in DuckDB! Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

lance-format/lance-duckdb#180 · 4 reactions · Opened Mar 25, 2026
WASM support? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

lance-format/lance-duckdb#178 · 2 reactions · Opened Mar 24, 2026
`ALTER TABLE ... ALTER COLUMN ... SET NOT NULL` is not supported Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

lance-format/lance-duckdb#115 · Opened Dec 29, 2025
Dataset config and metadata inspection/update. Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

lance-format/lance-duckdb#105 · Opened Dec 28, 2025
time travel: read branch/version/tag Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

lance-format/lance-duckdb#88 · 2 comments · 3 reactions · Opened Dec 28, 2025
Tracking issues for missing features Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

lance-format/lance-duckdb#63 · 4 reactions · Opened Dec 26, 2025
idea: Integrate with substrait to avoid expr transform Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

lance-format/lance-duckdb#41 · 2 comments · Opened Dec 24, 2025

lance-format/lance-duckdb

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