open-webui/backend
Classic298 a15e44a5ff
refac: use MilvusClient instead of deprecated ORM-style PyMilvus APIs (#27521)
* refac: use MilvusClient instead of deprecated ORM-style PyMilvus APIs

PyMilvus 2.6 emits a PyMilvusDeprecationWarning for every ORM-style call (`connections.connect`, `utility.*`, `Collection` and its methods) and will remove those APIs in PyMilvus 3.1. Both Milvus backends still used them, so a running instance floods its logs with deprecation warnings during indexing and retrieval, and would break outright once PyMilvus 3.1 lands.

Both vector clients now go through `MilvusClient`:
- `milvus_multitenancy.py`: collection creation, index creation, has_collection, insert, search, query iteration, delete and reset.
- `milvus.py`: the remaining ORM calls in `query()` (`connections.connect`, `Collection(...).load()`, `Collection.query_iterator`), plus the now-unused `FieldSchema` import.

Behaviour is unchanged: same schema, same index parameters and the same two-step scalar-index fallback, same filter expressions, same result shapes. Verified against embedded Milvus (milvus-lite, pymilvus 2.6.14) with a functional harness over both clients: insert, get, query by string/int/bool metadata filters, vector search, tenant isolation, oversized-text truncation, delete by id and by filter, delete_collection and reset all return identical results before and after, while the deprecation warnings drop from 57 to 0 for the multi-tenancy client and from 16 to 0 for the standard one.

One Milvus Lite nuance worth recording: `MilvusClient` sends index build parameters (`M`, `efConstruction`, `nlist`) as flat keys rather than as a nested `params` blob. A Milvus server accepts both forms, Milvus Lite only reads the nested one, so those tuning values are ignored on Lite. `MilvusClient` offers no way to send the nested form, and `milvus.py` already built its index parameters this way, so both backends are now consistent.

Fixes #26978

* refac: correct the Milvus scalar-index comment

The comment claimed that embedded Milvus Lite requires an explicit scalar index type. It does not: Milvus Lite rejects `create_index` on a VARCHAR field outright ("create_index only supports vector fields"), for every index type and with or without a metric type, so neither the parameterless call nor the explicit INVERTED fallback can succeed there. Filtered queries on `resource_id` still work on Lite, just unindexed.

Only the accurate half is kept, which is the reason the parameterless call is deliberate rather than an omission.
2026-07-26 18:12:08 -04:00
..
data refac: mv backend files to /open_webui dir 2024-09-04 16:54:48 +02:00
open_webui refac: use MilvusClient instead of deprecated ORM-style PyMilvus APIs (#27521) 2026-07-26 18:12:08 -04:00
.dockerignore fix: litellm config issue 2024-02-24 22:35:11 -08:00
.gitignore refac 2024-09-06 04:59:20 +02:00
dev.sh refac 2026-03-24 19:43:30 -05:00
requirements-min.txt fix: bump uvicorn to 0.51.0 to move off the legacy websocket implementation (#27553) 2026-07-26 17:55:44 -04:00
requirements.txt fix: bump uvicorn to 0.51.0 to move off the legacy websocket implementation (#27553) 2026-07-26 17:55:44 -04:00
start.sh refac 2026-06-17 03:01:11 +02:00
start_windows.bat refac 2026-06-17 03:01:11 +02:00