milvus_text_search not working with correct database and collection.

[bladexxx]

below is error:
2025-03-27 08:52:03,508 [ERROR][search]: Failed to search collection: nifi_doc_rag_new (milvus_client.py:415)
2025-03-27 08:52:39,330 [ERROR][handler]: RPC error: [search], <MilvusException: (code=1100, message=failed to create query plan: failed to get field schema by name: fieldName(sparse) not found: invalid parameter)>, <Time:{'RPC start': '2025-03-27 08:52:39.328089', 'RPC error': '2025-03-27 08:52:39.330284'}> (decorators.py:140)
2025-03-27 08:52:39,330 [ERROR][search]: Failed to search collection: nifi_doc_rag_new (milvus_client.py:415)

The tool "milvus_query" is working!!

[stephen37]

@bladexxx Hey,

For this one it's because the collection you're using doesn't support Full Text Search, you're missing a Sparse index there so it won't work.

You need to have a BM25 index running in your collection, you can check how here: https://milvus.io/docs/full-text-search.md
Something like this: