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Add single-file Lance exports and loading - #27

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mprammer merged 4 commits into
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mp/lance
Oct 13, 2026
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mprammer merged 4 commits into
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Add lance@py and the optional raincloud[lance] extra for the Lance output tracked in #5. Canonical Arrow can be exported as a single Lance 2.2 file, read back before publication, and loaded through projected batches, to_arrow(), or to_pandas().

File version and column-buffer settings are configurable. Unsupported page-size requests are refused, and export and verification run in a spawned process because Lance is not fork-safe.

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Signed-off-by: Martin Prammer <martin@spiraldb.com>
Signed-off-by: Martin Prammer <martin@spiraldb.com>
Signed-off-by: Martin Prammer <martin@spiraldb.com>
Signed-off-by: Martin Prammer <martin@spiraldb.com>
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mprammer marked this pull request as ready for review October 13, 2026 01:21
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mprammer merged commit 7e65bb4 into develop Oct 13, 2026
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mprammer deleted the mp/lance branch October 13, 2026 01:55
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