postgres

package

v2.7.0 Latest Latest Go to latest Published: Sep 2, 2026 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation ¶

Index ¶

type PGVector
- func NewPGVector(db *sqlx.DB, config PGVectorConfig) (*PGVector, error)
type PGVectorConfig

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type PGVector ¶

type PGVector struct {
	// contains filtered or unexported fields
}

func NewPGVector ¶

func NewPGVector(db *sqlx.DB, config PGVectorConfig) (*PGVector, error)

func (*PGVector) CheckSchema ¶ added in v2.5.2

func (pv *PGVector) CheckSchema(ctx context.Context) error

func (*PGVector) Clear ¶

func (pv *PGVector) Clear(ctx context.Context) error

func (*PGVector) Delete ¶

func (pv *PGVector) Delete(ctx context.Context, postIDs []string) error

func (*PGVector) DeleteOrphaned ¶

func (pv *PGVector) DeleteOrphaned(ctx context.Context, nowTime, batchSize int64) (int64, error)

DeleteOrphaned removes embeddings whose posts no longer exist or are soft-deleted past retention.

func (*PGVector) FinalizeBulkIndex ¶

func (pv *PGVector) FinalizeBulkIndex(ctx context.Context) error

FinalizeBulkIndex rebuilds the ANN index (same DDL as the constructor). Drops a same-named wrong/invalid leftover first so IF NOT EXISTS cannot keep it. Uses a pinned connection with statement_timeout=0; querying via pv.db while holding it would self-deadlock on a one-conn pool.

func (*PGVector) PrepareBulkIndex ¶

func (pv *PGVector) PrepareBulkIndex(ctx context.Context) error

PrepareBulkIndex drops the ANN index for bulk load. Keeps post_id B-tree (needed by catch-up's NOT EXISTS).

func (*PGVector) Search ¶

func (pv *PGVector) Search(ctx context.Context, embedding []float32, opts embeddings.SearchOptions) ([]embeddings.SearchResult, error)

func (*PGVector) Store ¶

func (pv *PGVector) Store(ctx context.Context, docs []embeddings.PostDocument, embeddings [][]float32) error

func (*PGVector) VectorIndexExists ¶

func (pv *PGVector) VectorIndexExists(ctx context.Context) (bool, error)

VectorIndexExists is true only for a valid index with the expected definition.

type PGVectorConfig ¶

type PGVectorConfig struct {
	Dimensions int `json:"dimensions"`

	// HNSWM and VectorElementType are applied after unmarshalling
	// vectorStore.parameters so a stale parameters blob cannot override the
	// top-level config fields.
	HNSWM             int    `json:"-"`
	VectorElementType string `json:"-"`

	// SkipVectorIndex: skip constructor CREATE while a deferred reindex owns
	// the lifecycle (avoids sync rebuild of an intentionally dropped index).
	SkipVectorIndex bool `json:"-"`
}

Source Files ¶

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