/**
 * Querying
 *
 * @since 1.0.0
 */
import type * as Schema from "@effect/schema/Schema";
import type * as Effect from "effect/Effect";
import type * as Stream from "effect/Stream";
import type * as pg from "pg";
import type * as PgError from "./PgError.js";
/**
 * @category models
 * @since 1.0.0
 */
export interface QueryStreamOptions {
    maxRowsPerRead: number;
}
/**
 * @category querying
 * @since 1.0.0
 */
export declare const all: {
    <R, _, A = unknown>(sql: string, schema: Schema.Schema<A, _, R>): (...values: Array<unknown>) => Effect.Effect<Array<A>, PgError.PostgresQueryError | PgError.PostgresValidationError, pg.ClientBase | R>;
    (sql: string): (...values: Array<unknown>) => Effect.Effect<Array<unknown>, PgError.PostgresQueryError, pg.ClientBase>;
};
/**
 * @category querying
 * @since 1.0.0
 */
export declare const one: {
    (sql: string): (...values: Array<unknown>) => Effect.Effect<unknown, PgError.PostgresQueryError | PgError.PostgresUnexpectedNumberOfRowsError, pg.ClientBase>;
    <R, _, A = unknown>(sql: string, schema?: Schema.Schema<A, _, R>): (...values: Array<unknown>) => Effect.Effect<A, PgError.PostgresQueryError | PgError.PostgresValidationError | PgError.PostgresUnexpectedNumberOfRowsError, pg.ClientBase | R>;
};
/**
 * @category querying
 * @since 1.0.0
 */
export declare const stream: {
    <R, _, A>(queryText: string, schema: Schema.Schema<A, _, R>, options?: Partial<QueryStreamOptions>): (...values: Array<unknown>) => Stream.Stream<A, PgError.PostgresQueryError | PgError.PostgresValidationError, pg.ClientBase | R>;
    (queryText: string, options?: Partial<QueryStreamOptions>): (...values: Array<unknown>) => Stream.Stream<unknown, PgError.PostgresQueryError, pg.ClientBase>;
};
/**
 * @category transactions
 * @since 1.0.0
 */
export declare const begin: Effect.Effect<void, PgError.PostgresQueryError, pg.ClientBase>;
/**
 * @category transactions
 * @since 1.0.0
 */
export declare const commit: Effect.Effect<void, PgError.PostgresQueryError, pg.ClientBase>;
/**
 * @category transactions
 * @since 1.0.0
 */
export declare const rollback: Effect.Effect<void, PgError.PostgresQueryError, pg.ClientBase>;
/**
 * @category transactions
 * @since 1.0.0
 */
export declare const transaction: <R, E, A>(self: Effect.Effect<A, E, R>) => Effect.Effect<A, E | PgError.PostgresQueryError, R | pg.ClientBase>;
/**
 * @category transactions
 * @since 1.0.0
 */
export declare const transactionRollback: <R, E, A>(self: Effect.Effect<A, E, R>) => Effect.Effect<A, E | PgError.PostgresQueryError, R | pg.ClientBase>;
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