import { Query, SQL } from 'drizzle-orm/sql';
import { PgDialect } from './dialect';
import { SelectFieldsOrdered } from './operations';
export interface PreparedQueryConfig {
    execute: unknown;
    all: unknown;
    values: unknown;
}
export declare abstract class PreparedQuery<T extends PreparedQueryConfig> {
    abstract execute(placeholderValues?: Record<string, unknown>): Promise<T['execute']>;
}
export declare abstract class PgSession {
    protected dialect: PgDialect;
    constructor(dialect: PgDialect);
    abstract prepareQuery<T extends PreparedQueryConfig = PreparedQueryConfig>(query: Query, fields: SelectFieldsOrdered | undefined, name: string | undefined): PreparedQuery<T>;
    execute<T>(query: SQL): Promise<T>;
    all<T = unknown>(query: SQL): Promise<T[]>;
    values<T extends unknown[] = unknown[]>(query: SQL): Promise<T[]>;
}
export interface QueryResultHKT {
    readonly $brand: 'QueryRowHKT';
    readonly row: unknown;
    readonly type: unknown;
}
export declare type QueryResultKind<TKind extends QueryResultHKT, TRow> = (TKind & {
    readonly row: TRow;
})['type'];
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