Drop Non Linear Algorithm Index

Schema

This request accepts an optional schema field. When it is omitted, the server uses the public schema. Set schema to target a store in another schema.

The DropNonLinearAlgorithmIndex request removes a non-linear index (HNSW) from a store.

• Input: Store name, list of index types to remove, and error handling flag.

• Behavior: Removes the specified non-linear indices.

• Response: Confirmation of index removal.

Click to expand source code

TypeScript

import { createDbClient } from "ahnlich-client-node";
import { DropNonLinearAlgorithmIndex } from "ahnlich-client-node/grpc/db/query_pb";
import { NonLinearAlgorithm } from "ahnlich-client-node/grpc/algorithm/nonlinear_pb";

async function dropNonLinearIndex() {
  const client = createDbClient("127.0.0.1:1369");

  await client.dropNonLinearAlgorithmIndex(
    new DropNonLinearAlgorithmIndex({
      store: "my_store",
      schema: "analytics",
      nonLinearIndices: [NonLinearAlgorithm.HNSW],
      errorIfNotExists: true,
    })
  );

  console.log("HNSW index dropped successfully");
}

dropNonLinearIndex();

Parameters

Parameter	Type	Required	Description
store	string	Yes	The name of the store
nonLinearIndices	NonLinearAlgorithm[]	Yes	List of index types to remove
errorIfNotExists	boolean	No	If true, throws error if index doesn't exist

Available NonLinearAlgorithm Values

Value	Description
NonLinearAlgorithm.HNSW	Hierarchical Navigable Small World

Notes

• Dropping an index does not delete the underlying data
• Similarity searches will fall back to linear scan after dropping indices
• You may want to rebuild indices with different configurations