import type { SelectQuery } from '../SelectQuery';
/** `not: true` compiles to `NOT EXISTS (...)` instead of `EXISTS (...)`. */
export type ExistsCondition = {
    exists: SelectQuery;
    not?: boolean;
};
/**
 * A subquery for an EXISTS/NOT EXISTS check: either a ready-made SelectQuery
 * or a callback that receives a fresh one to configure (mirrors the grouped
 * condition callback style used by `where((group) => ...)`).
 */
export type ExistsSubquery = SelectQuery | ((query: SelectQuery) => void);
/**
 * Builds an `ExistsCondition` from an `ExistsSubquery`. Shared by
 * `HasWhereConditions` (SelectQuery/UpdateQuery/DeleteQuery/DataTable) and
 * `ConditionGroup`, so `whereExists`/`whereNotExists`/`orWhereExists`/
 * `orWhereNotExists` behave identically at the top level and inside a grouped
 * condition callback.
 *
 * `SelectQuery` is required lazily (instead of imported eagerly) because both
 * call sites are themselves dependencies of `SelectQuery` — an eager import
 * here would create a circular load-order deadlock where `SelectQuery`'s own
 * top-level mixin setup runs before this module (and therefore `SelectQuery`
 * itself) finished loading.
 */
export declare function buildExistsCondition(subquery: ExistsSubquery, not?: boolean): ExistsCondition;