import { IConnectionConfig, Connection, IntrospectResult, VarsContext, ConnectionContextOptions, AnyAST, TransactionOptions } from 'lite-supa';
import { Kysely } from 'kysely';

interface IBasePostgresConnectionConfig extends IConnectionConfig {
}
declare abstract class BasePostgresConnection<Driver = unknown, DB = any> extends Connection<Driver, DB> {
    abstract driver: Driver;
    dialect: "postgres";
    constructor(options: IBasePostgresConnectionConfig);
    introspect(options?: {
        useCache?: boolean;
    }): Promise<IntrospectResult>;
    private rlsState;
    /**
     * Detect if any table has RLS enabled, and if so ensure anon/authenticated
     * roles exist with default privileges. Runs once per connection.
     */
    private ensureRlsContext;
    withContext<T>(vars: VarsContext | undefined, fn: (db: Kysely<any>) => Promise<T>, opts?: ConnectionContextOptions): Promise<T>;
    onPostgrestAST(ast: AnyAST): Promise<AnyAST>;
    transaction(statements: string[], opts?: TransactionOptions): Promise<void>;
}

export { BasePostgresConnection as B, type IBasePostgresConnectionConfig as I };