import { ViewEntity } from '../query-engine.js';
import { DBChanges, PreparedQuery } from '../types.js';
/**
 *
 * For each query and its subqueries, find all the relational variables that are referenced in the filters.
 * This is used in IVM to avoid unnecessary refetching of related data if the controlling variables
 * are unchanged.
 */
export declare function getReferencedRelationalVariables(query: PreparedQuery, stack?: PreparedQuery[], results?: Map<number, Set<string>>): Map<number, Set<string>>;
/**
 *
 * For each query and its subqueries, find all the collections that the parent query
 * or the subquery references in the filters.
 *
 * This is used in IVM to determine "given a set of changes, can I avoid
 *  iterating into this query and its subqueries?"
 *
 */
export declare function getCollectionsReferencedInSubqueries(query: PreparedQuery, stack?: number[], results?: Map<number, Set<string>>): Map<number, Set<string>>;
export declare function hasSubqueryFilterAtAnyLevel(query: PreparedQuery): boolean;
export declare function hasSubqueryOrderAtAnyLevel(query: PreparedQuery): boolean;
/**
 * The idea here is not to replace inverted views with real values
 * But _not_ replace any other variables
 */
export declare function bindViewReferencesInQuery(query: PreparedQuery, views: Record<string, ViewEntity[]>, shouldClone?: boolean): PreparedQuery;
export declare function createQueryWithExistsAddedToIncludes(query: PreparedQuery): PreparedQuery;
export declare function createQueryWithRelationalOrderAddedToIncludes(query: PreparedQuery): PreparedQuery;
/**
 * This will take two sets of changes and return a set of changes that need to be applied
 * to the old changes to get the new changes which means modeling missing changes as
 * deletes
 * @param oldChanges
 * @param newChanges
 */
export declare function diffChanges(oldChanges: DBChanges, newChanges: DBChanges): DBChanges;
export declare function queryResultsToChanges<C extends string>(results: ViewEntity[], query: PreparedQuery, changes?: DBChanges): DBChanges;