import type * as MysqlClient from "@effect/sql-mysql2/MysqlClient";
import type { AnyRelations, EmptyRelations } from "drizzle-orm";
import type { EffectMysql2Database } from "drizzle-orm/effect-mysql2";
import type { EffectDrizzleMySqlConfig } from "drizzle-orm/mysql-core/effect/utils";
import * as Effect from "effect/Effect";
import type * as Redacted from "effect/Redacted";
import type { MySQLConfig } from "../SQL/MySQL.ts";
/**
 * Open a Drizzle/MySQL database from a connection URL using the
 * `drizzle-orm/effect-mysql2` integration.
 *
 * ```typescript
 * const conn = yield* Cloudflare.Hyperdrive.Connect(Hyperdrive);
 * const db = yield* Drizzle.MySQL(conn.connectionString, { relations });
 *
 * fetch: Effect.gen(function* () {
 *   const rows = yield* db.select().from(users);
 * });
 * ```
 *
 * The pool opens on the first query of an execution, is reused for every
 * query in it, and closes when the event settles (see
 * {@link makeExecutionMemo}); plan/deploy never connect. Workers defaults
 * ({@link resolveMySQLConfig}) are overridden via `config.client`:
 *
 * ```typescript
 * const db = yield* Drizzle.MySQL(connectionString, {
 *   relations,
 *   client: { poolConfig: { ssl: { rejectUnauthorized: true } } },
 * });
 * ```
 *
 * @binding
 */
export declare const MySQL: <TRelations extends AnyRelations = EmptyRelations, E = never, R = never>(connectionString: Effect.Effect<Redacted.Redacted<string>, E, R>, config?: EffectDrizzleMySqlConfig<TRelations> & {
    /**
     * Overrides for the underlying `@effect/sql-mysql2` client — pool
     * options (e.g. `poolConfig.ssl` for a direct TLS connection),
     * `disablePreparedStatements`, `maxConnections`, and friends.
     */
    readonly client?: Omit<MySQLConfig, "url">;
}) => Effect.Effect<EffectMysql2Database<TRelations> & {
    $client: MysqlClient.MysqlClient;
}, never, never>;
//# sourceMappingURL=MySQL.d.ts.map