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Merge pull request #2749 from rockwotj/pgvector
Support pgvector for postgres outputs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| // Copyright 2024 Redpanda Data, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package sql | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/redpanda-data/benthos/v4/public/bloblang" | ||
| ) | ||
|
|
||
| type vector struct { | ||
| value []float32 | ||
| } | ||
|
|
||
| func init() { | ||
| vectorSpec := bloblang.NewPluginSpec(). | ||
| Beta(). | ||
| Category("SQL"). | ||
| Description(`Creates a vector from a given array of floating point numbers. | ||
| This vector can be inserted into various SQL databases if they have support for embeddings vectors (for example `+"`pgvector`)."). | ||
| Version("4.33.0"). | ||
| Example("Create a vector from an array literal", | ||
| `root.embeddings = [1.2, 0.6, 0.9].vector()`, | ||
| ). | ||
| Example("Create a vector from an array", | ||
| `root.embedding_vector = this.embedding_array.vector()`, | ||
| ) | ||
|
|
||
| if err := bloblang.RegisterMethodV2( | ||
| "vector", vectorSpec, | ||
| func(args *bloblang.ParsedParams) (bloblang.Method, error) { | ||
| return bloblang.ArrayMethod(func(a []any) (any, error) { | ||
| vec := make([]float32, len(a)) | ||
| for i, e := range a { | ||
| f, err := bloblang.ValueAsFloat32(e) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not convert value at index %d to float32: %w", i, err) | ||
| } | ||
| vec[i] = f | ||
| } | ||
| return vector{vec}, nil | ||
| }), nil | ||
| }, | ||
| ); err != nil { | ||
| panic(err) | ||
| } | ||
| } |
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