feat: add Boost query API (Weaviate 1.38 Preview)#355
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…ate methods Weaviate 1.38 Preview, gRPC-only. Adds the Boost model (filter, time_decay, numeric_decay, numeric_property conditions plus weighted blend), the Boost proto message + optional SearchRequest.boost field 62 (from the v1.38.4 server proto), request serialization in BuildBoost, and an optional boost parameter on every BM25/Hybrid/NearText/NearVector/NearObject/NearMedia overload of QueryClient, GenerateClient and the typed clients (FetchObjects excluded, matching python client PR #2030). All server defaults (weight 0.5, depth 100, curve exponential, decay 0.5) are left to the server via proto field presence; the only client-side default is time_decay origin=now.
Pre-1.38 servers silently ignore the boost proto field, so on CI's matrix
(<= 1.37.5) the asserted orderings would fail rather than skip. Each of the
five tests now calls RequireVersion("1.38.0") per repo convention.
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Weaviate.Client.VectorData - 50.3%
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Pull request overview
Adds the Weaviate 1.38 (Preview, gRPC-only) Boost soft-ranking API to the C# client by introducing a new Boost model, extending the gRPC proto/request builder to serialize it, and threading an optional boost parameter through the query/generate (including typed) surfaces, with unit + integration coverage.
Changes:
- Introduces
Models/Boost.cswith factory methods for filter/time-decay/numeric boosts and blending. - Extends gRPC
SearchRequestproto and request building to include the optionalboostfield and map model → proto. - Adds
boostparameters across relevant Query/Generate APIs (including typed clients) plus unit/integration tests verifying serialization and ranking behavior.
Reviewed changes
Copilot reviewed 30 out of 31 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| src/Weaviate.Client/Typed/TypedQueryClient.NearVector.cs | Threads optional boost through typed NearVector query overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedQueryClient.NearText.cs | Threads optional boost through typed NearText query overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedQueryClient.NearObject.cs | Threads optional boost through typed NearObject query overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedQueryClient.NearMedia.cs | Threads optional boost through typed NearMedia query overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedQueryClient.Hybrid.cs | Adds optional boost to typed Hybrid query overloads. |
| src/Weaviate.Client/Typed/TypedQueryClient.BM25.cs | Adds optional boost to typed BM25 query overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedGenerateClient.NearVector.cs | Threads optional boost through typed NearVector generate overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedGenerateClient.NearText.cs | Threads optional boost through typed NearText generate overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedGenerateClient.NearObject.cs | Threads optional boost through typed NearObject generate overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedGenerateClient.NearMedia.cs | Threads optional boost through typed NearMedia generate overloads and XML docs. |
| src/Weaviate.Client/Typed/TypedGenerateClient.Hybrid.cs | Adds optional boost to typed Hybrid generate overloads. |
| src/Weaviate.Client/Typed/TypedGenerateClient.BM25.cs | Adds optional boost to typed BM25 generate overloads and XML docs. |
| src/Weaviate.Client/QueryClient.NearVector.cs | Adds optional boost to NearVector query overloads and passes through to gRPC. |
| src/Weaviate.Client/QueryClient.NearText.cs | Adds optional boost to NearText query overloads and passes through to gRPC. |
| src/Weaviate.Client/QueryClient.NearObject.cs | Adds optional boost to NearObject query overloads and passes through to gRPC. |
| src/Weaviate.Client/QueryClient.NearMedia.cs | Adds optional boost to NearMedia query overloads and passes through to gRPC. |
| src/Weaviate.Client/QueryClient.Hybrid.cs | Adds optional boost to Hybrid query overloads and passes through to gRPC. |
| src/Weaviate.Client/QueryClient.BM25.cs | Adds optional boost to BM25 query overloads and passes through to gRPC. |
| src/Weaviate.Client/GenerateClient.NearVector.cs | Adds optional boost to NearVector generate overloads and passes through to gRPC. |
| src/Weaviate.Client/GenerateClient.NearText.cs | Adds optional boost to NearText generate overloads and passes through to gRPC. |
| src/Weaviate.Client/GenerateClient.NearObject.cs | Adds optional boost to NearObject generate overloads and passes through to gRPC. |
| src/Weaviate.Client/GenerateClient.NearMedia.cs | Adds optional boost to NearMedia generate overloads and passes through to gRPC. |
| src/Weaviate.Client/GenerateClient.Hybrid.cs | Adds optional boost to Hybrid generate overloads and passes through to gRPC. |
| src/Weaviate.Client/GenerateClient.BM25.cs | Adds optional boost to BM25 generate overloads and passes through to gRPC. |
| src/Weaviate.Client/Models/Boost.cs | New public Boost model + factories and blend composition used by gRPC serialization. |
| src/Weaviate.Client/gRPC/Search.cs | Adds boost parameter plumbing through gRPC search entrypoints. |
| src/Weaviate.Client/gRPC/Search.Builders.cs | Adds BuildBoost + curve/modifier mapping and sets SearchRequest.Boost. |
| src/Weaviate.Client/gRPC/proto/v1/search_get.proto | Adds Boost message + optional Boost boost = 62 on SearchRequest. |
| src/Weaviate.Client.Tests/Unit/TestBoostSyntax.cs | Unit tests verifying boost proto serialization + field presence behavior. |
| src/Weaviate.Client.Tests/Integration/TestBoost.cs | Integration tests asserting ranking changes with boost (gated to 1.38+). |
# Conflicts: # src/Weaviate.Client/PublicAPI.Unshipped.txt
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Boostmodel withFilter,TimeDecay,NumericDecay,NumericProperty, andBlendfactories plusCurve/Modifierenums; optionalboostparameter on every BM25/Hybrid/Near* query and generate overload, including the typed clients (FetchObjectsexcluded, matching Python).Boostmessage +optional Boost boost = 62onSearchRequest, taken from the server v1.38.4 tag.time_decayorigin = "now".