import { OplogColumnChanges, OplogEntry, PendingChanges } from './oplog.js';
import { RelationsCache, Row } from '../util/index.js';
/**
 * Merge server-sent operation with local pending oplog to arrive at the same row state the server is at.
 * @param localOrigin string specifying the local origin
 * @param local local oplog entries
 * @param incomingOrigin string specifying the upstream origin
 * @param incoming incoming oplog entries
 * @returns Changes to be made to the shadow tables
 */
export declare function mergeEntries(localOrigin: string, local: OplogEntry[], incomingOrigin: string, incoming: OplogEntry[], relations: RelationsCache): PendingChanges;
/**
 * Merge two sets of changes, using the timestamp to arbitrate conflicts
 * so that the last write wins.
 *
 * @remarks
 *
 * The `fullRow` is mutated to reflect the outcome of LWW.
 * For columns that have no changes in `second` we assign the
 * column value from `first`.
 *
 * @param firstOrigin - Origin of the first changes
 * @param first - Changes
 * @param secondOrigin - Origin of the second changes
 * @param second - Changes
 * @param fullRow - The complete row after changes in `second`
 * @returns The merged changes
 */
export declare const mergeChangesLastWriteWins: (firstOrigin: string, first: OplogColumnChanges, secondOrigin: string, second: OplogColumnChanges, fullRow: Row) => OplogColumnChanges;