@clickup/pg-microsharding/dist/internal/waitUntilEverythingIsNotLaggingMuch.d.ts

Microshards support for PostgreSQL

import type { TableInfo } from "./getTablesInSchema";
/**
 * Waits until all physical replicas on a DSN are not lagging for too much, so
 * we can e.g. call waitUntilIncrementalCompletes() and then resultCommit().
 * Also, if fromDsn is passed, waits for the logical slot to lag not more than
 * maxReplicationLagSec time.
 *
 * For the logical slot replication lag estimation, in the beginning, we
 * "latch", i.e. remember the master's LSN, and then wait until the slot replay
 * is past that LSN. Once it happens, the amount of time passed is roughly the
 * logical replication slot lag in seconds. This is the only way to estimate,
 * how many seconds behind is a logical slot.
 *
 * For physical replicas, we query their replication lag in seconds directly.
 *
 * If waitForUserToContinue=true, then the function exits ONLY when the user
 * told it to do so explicitly by pressing the hotkey.
 */
export declare function waitUntilEverythingIsNotLaggingMuch({ when, fromDsn, tables, toDsn, schema, maxReplicationLagSec: maxLagSec, waitForUserToContinue, }: {
    when: string;
    fromDsn?: string | null;
    tables: TableInfo[];
    toDsn: string;
    schema: string;
    maxReplicationLagSec: number;
    waitForUserToContinue: boolean;
}, throwIfAborted?: () => void): Promise<void>;
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