lance-format / lance-format/lance
Streaming blob writes
@Xuanwo is already working on this.
Since Jun 19, 2025.
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Description
The idea of large files is discussed more in https://github.com/lancedb/lance/discussions/3996
Regardless of what approach we take (inline, pointer, blob dataset, etc.) we should have a better API for writing blob data that supports streaming the blob in. For example, we could take an array of file objects and stream them one at a time, or a callback that is called with the non-blob part of the row and returns a byte stream of some kind.
We should be able to prototype that even today using approaches like the large_binary encoding in 2.0 which allows individual values to be written whenever.
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