import { BaseVectorStore } from '../storage/base-vector-store';
import type { VectorFilter, VectorQueryResult, VectorRecord } from '../types/sdk/vector-store';
export type PgVectorStoreOptions = {
    connectionString: string;
    tableName: string;
    connectionTimeoutMillis?: number;
};
export declare class PgVectorStore extends BaseVectorStore<PgVectorStoreOptions> {
    private readonly tableName;
    private pool?;
    private iterativeScanSupportedPromise?;
    constructor(name: string, options: PgVectorStoreOptions);
    upsert(records: VectorRecord[]): Promise<void>;
    query(vector: number[], opts: {
        topK: number;
        filter?: VectorFilter;
    }): Promise<VectorQueryResult[]>;
    delete({ ids }: {
        ids: string[];
    }): Promise<void>;
    close(): Promise<void>;
    private buildFilterClause;
    private buildConditionClause;
    private supportsIterativeScan;
    private checkIterativeScanSupport;
    private getPool;
}