import { ConditionDescription } from '../../operands/condition-description';
import { JoinDescription } from './join/join-description';
import { OrderByDescription } from './order-by/order-by-description';
import { ValueType } from '../../operands/value-type';
import { SourceTableDescription } from './source-table';
export interface SelectSql<T> {
    select: T;
    from?: SourceTableDescription<any>;
    join?: JoinDescription[];
    where?: ConditionDescription;
    groupBy?: ValueType[] | ValueType;
    having?: ConditionDescription;
    orderBy?: ValueType | OrderByDescription | (OrderByDescription | ValueType)[];
    limit?: number | null;
    offset?: number | null;
}
export declare const isSelectSql: (val: any) => val is SelectSql<any>;
export declare const isSingleFieldSelect: (fields: any) => boolean;