liliu-z 3f063a29b0
feat: Support Search By PK (#45820)
issue: #39157

Overview:
Support search by PK by resolving IDs to vectors on Proxy side. Upgrade
go-api to adapt to new proto definitions.

Design:
- Upgrade milvus-proto/go-api to latest master.
- Implement handleIfSearchByPK in Proxy: resolve IDs to vectors via
internal Query, then rewrite SearchRequest.
- Adapt to 'SearchInput' oneof field in SearchRequest across client and
handlers.
- Fix binary vector stride calculation bug in placeholder utils.

Compatibility:
- Old Pymilvus can still work w/o this feature

What is included:
- Dense and Sparse
- Multi vector fields
- Rejection on BM25

What is **not** include:
- Hybrid Search
- EmbeddingList
- Restful API

Signed-off-by: Li Liu <li.liu@zilliz.com>
2025-12-10 10:59:14 +08:00
..
2025-12-10 10:59:14 +08:00
2025-12-10 10:59:14 +08:00

Go MilvusClient

license Go Reference

Go MilvusClient for Milvus. To contribute code to this project, please read our contribution guidelines first.

Getting started

Prerequisites

Go 1.24.11 or higher

Install Milvus Go SDK

  1. Use go get to install the latest version of the Milvus Go SDK and dependencies:

    go get -u github.com/milvus-io/milvus/client/v2
    
  2. Include the Go MilvusClient in your application:

     import "github.com/milvus-io/milvus/client/v2/milvusclient"
    
     //...other snippet ...
     ctx, cancel := context.WithCancel(context.Background())
     defer cancel()
    
     milvusAddr := "YOUR_MILVUS_ENDPOINT"
    
     cli, err := milvusclient.New(ctx, &milvusclient.ClientConfig{
     	Address: milvusAddr,
     })
     if err != nil {
     	// handle error
     }
    
     // Do your work with milvus client
    

API Documentation

Refer to https://milvus.io/api-reference/go/v2.5.x/About.md for the Go SDK API documentation.

Code format

The Go source code is formatted using gci & gofumpt. Please run make lint-fix before sumbit a PR.