kdrant-core/dev.kdrant/QdrantClient/updateCollection

updateCollection

abstract suspend fun updateCollection(name: String, configure: UpdateCollectionBuilder.() -> Unit)

Update an existing collection's config (optimizers, HNSW, quantization).

qdrant.updateCollection("docs") {
    optimizers = OptimizersConfig(indexingThreshold = 20_000)
    quantization = QuantizationConfig.Scalar(quantile = 0.99f)
}