import { C as TracerQueryFinishEvent, S as TracerQueryErrorEvent, b as TracerHooks, t as CreateTracerOptions, v as Tracer, x as TracerQueryEndEvent, y as TracerErrorEvent } from "./types-D_rumhHT.mjs";
import { Knex } from "knex";
//#region src/tracer.d.ts
/**
 * Attach low-level query tracing hooks to a Knex instance.
 *
 * The tracer exposes query lifecycle events with duration, SQL, bindings, and
 * errors. Knex transaction control statements are excluded because they do not
 * emit complete query lifecycles.
 *
 * Hook errors are caught and passed to `onTracerError`, which is a no-op by
 * default.
 *
 * @example
 * ```ts
 * import { createTracer } from 'knex-tiny-logger/tracer'
 *
 * const spans = new Map()
 *
 * const tracer = createTracer(knex, {
 *   onStart(event) {
 *     spans.set(event.queryId, tracerProvider.startSpan('sql', {
 *       sql: event.sql,
 *       bindings: event.bindings,
 *     }))
 *   },
 *   onEnd(event) {
 *     spans.get(event.queryId)?.end({ durationMs: event.durationMs })
 *     spans.delete(event.queryId)
 *   },
 *   onError(event) {
 *     spans.get(event.queryId)?.fail(event.error)
 *     spans.delete(event.queryId)
 *   },
 * })
 *
 * tracer.dispose()
 * ```
 */
declare function createTracer(knex: Knex, options?: CreateTracerOptions): Tracer;
//#endregion
export { type CreateTracerOptions, type Tracer, type TracerErrorEvent, type TracerHooks, type TracerQueryEndEvent, type TracerQueryErrorEvent, type TracerQueryFinishEvent, createTracer };