/**
 * 64-bit unsigned integer stored as a string in base-10.
 *
 * Not sortable as a string.
 */
export type OpId = string;
/**
 * Type of local change.
 */
export declare enum UpdateType {
    /** Insert or replace existing row. All non-null columns are included in the data. Generated by INSERT statements. */
    PUT = "PUT",
    /** Update existing row. Contains the id, and value of each changed column. Generated by UPDATE statements. */
    PATCH = "PATCH",
    /** Delete existing row. Contains the id. Generated by DELETE statements. */
    DELETE = "DELETE"
}
export type CrudEntryJSON = {
    id: string;
    data: string;
    tx_id?: number;
};
/**
 * The output JSON seems to be a third type of JSON, not the same as the input JSON.
 */
type CrudEntryOutputJSON = {
    op_id: number;
    op: UpdateType;
    type: string;
    id: string;
    tx_id?: number;
    data?: Record<string, any>;
    old?: Record<string, any>;
    metadata?: string;
};
/**
 * A single client-side change.
 */
export declare class CrudEntry {
    /**
     * Auto-incrementing client-side id.
     */
    clientId: number;
    /**
     * ID of the changed row.
     */
    id: string;
    /**
     * Type of change.
     */
    op: UpdateType;
    /**
     * Data associated with the change.
     */
    opData?: Record<string, any>;
    /**
     * For tables where the `trackPreviousValues` option has been enabled, this tracks previous values for
     * `UPDATE` and `DELETE` statements.
     */
    previousValues?: Record<string, any>;
    /**
     * Table that contained the change.
     */
    table: string;
    /**
     * Auto-incrementing transaction id. This is the same for all operations within the same transaction.
     */
    transactionId?: number;
    /**
     * Client-side metadata attached with this write.
     *
     * This field is only available when the `trackMetadata` option was set to `true` when creating a table
     * and the insert or update statement set the `_metadata` column.
     */
    metadata?: string;
    static fromRow(dbRow: CrudEntryJSON): CrudEntry;
    constructor(clientId: number, op: UpdateType, table: string, id: string, transactionId?: number, opData?: Record<string, any>, previousValues?: Record<string, any>, metadata?: string);
    /**
     * Converts the change to JSON format.
     */
    toJSON(): CrudEntryOutputJSON;
    equals(entry: CrudEntry): boolean;
    /**
     * The hash code for this object.
     * @deprecated This should not be necessary in the JS SDK.
     * Use the  @see CrudEntry#equals method instead.
     * TODO remove in the next major release.
     */
    hashCode(): string;
    /**
     * Generates an array for use in deep comparison operations
     */
    toComparisonArray(): (string | number | Record<string, any> | undefined)[];
}
export {};