@clickup/pg-microsharding/dist/internal/advanceSequences.js

Microshards support for PostgreSQL

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.advanceSequences = advanceSequences;
const compact_1 = __importDefault(require("lodash/compact"));
const quote_1 = require("./quote");
const runSql_1 = require("./runSql");
/**
 * Advances all sequences on the destination (including sequences in other
 * schemas), so their values won't conflict with the ones on the source.
 */
async function advanceSequences({ fromDsn, toDsn, }) {
    const fromSequences = await (0, runSql_1.runSql)(fromDsn, (0, quote_1.sql) `
      SELECT
        quote_ident(sequence_schema) || '.' || quote_ident(sequence_name),
        nextval(quote_ident(sequence_schema) || '.' || quote_ident(sequence_name))::text
      FROM information_schema.sequences
      ORDER BY 1
    `);
    const toSequences = await runSql_1.runSql.column(toDsn, (0, quote_1.sql) `
      SELECT quote_ident(sequence_schema) || '.' || quote_ident(sequence_name)
      FROM information_schema.sequences
    `);
    const toSql = (0, compact_1.default)(fromSequences.map(([sequence, value]) => toSequences.includes(sequence)
        ? (0, quote_1.sql) `SELECT setval(${sequence}, GREATEST(nextval(${sequence}), ${value}) + 1000);`
        : null));
    if (toSql.length > 0) {
        await (0, runSql_1.runSql)(toDsn, (0, quote_1.join)(toSql, "\n"), "Advancing destination sequences");
    }
}
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