lance-format/lance
refactor: use LazyLock to initialize Field and Schema once
Aperta
#8244 aperta il 4 ago 2026
good first issue
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Descrizione
In many places we output the same set of fields and/or schema per method call, or even per batch. This can be made cheaper if we initialize them once via a LazyLock and wrapping in an Arc.
Here's an example where we construct a schema per query: