Create Predicate Index

The CreatePredIndex request creates an index on one or more metadata fields.
Indexes make predicate queries (e.g. GetPred) faster and more efficient.

• Input:

  • store: store name.

  • predicates: list of metadata fields to index.

• Behavior: Adds a new index on the specified fields.

• Response: Returns how many indexes were successfully created.

Click to expand source code

import asyncio
from grpclib.client import Channel
from ahnlich_client_py.grpc.services.db_service import DbServiceStub
from ahnlich_client_py.grpc.db import query as db_query


async def create_predicate_index():
  async with Channel(host="127.0.0.1", port=1369) as channel:
    client = DbServiceStub(channel)
    
    response = await client.create_pred_index(
      db_query.CreatePredIndex(
        store="test store",
        predicates=["job", "rank"]
      )
    )
    # response.created_indexes shows how many indexes were created
  print(response)


if __name__ =="__main__":
  asyncio.run(create_predicate_index())