I'm trying to index a unique string property on ~170M nodes. I've noticed that building a native (B-tree) index takes a very long time (several hours), but building a fulltext (Lucene) index takes around 40 minutes. For my use case I'd prefer the schema index since I don't need full-text search, but I'm leaning towards using the fulltext index because of the slow build schema index time.
Is there any way to improve the index build for B-tree indices? I don't need any kind of transactional integrity for building this index, since it's running right after a bulk import and before any read queries arrive.