Feature: Update API for automatic reindexing about usearch HOT 3 OPEN

Thank you @kernelsoe! Such an API indeed makes sense. We can implement it at least slightly more efficiently than the remove & add combo, by reusing the same memory buffers under the hood. However, generally, remove is discouraged. As part of any operation or standalone.

How many vectors do you generally deal with?

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@ashvardanian For my use case, I'm trying to load and add a few hundred user notes from sqlite into usearch on app startup without remove op then as the user edits 1 or reflecting multiple notes, I'm reindexing by removing and adding all with the same key again.

Doing this combined operation for multiple times in 1 function call would sometimes throw error, so I did something like below for now 😄:

for (const payload of payloads) {
  await remove()...
  await timeout(300)
}

for (const payload of payloads) {
  await add()...
  await timeout(300)
}

May be I should use batch op?

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Aside: There is a sqlite plugin sqlite-vss that adds vector search, but unfortunately uses FAISS Flat not HNSW. In addition, updates are not supported, so it seems the issue is elsewhere. I think pg-vector rolled their own.

While I wish this was inside sqlite, I am looking forward to using it side by side like you are.

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