pg-native after update pg@8.15.1 and pg-native@3.4.0: Cannot read properties of null (reading 'Pool')

[cesco69]

{
    "name": "example",
    "version": "1.0.0",
    "main": "index.js",
    "dependencies": {
        "pg": "^8.15.1",
        "pg-native": "^3.4.0"
    },
    "sideEffects": false
}

const pg = require("pg");

const pool = new pg.native.Pool({ host: 'LOCALHOST' })
const result = await pool.query('SELECT 1');
console.log(result)

Error

2025-04-23 12:10:48 TypeError: Cannot read properties of null (reading 'Pool')
2025-04-23 12:10:48     at /opt/test/index.js:9:36
2025-04-23 12:10:48     at Layer.handleRequest (/opt/test/node_modules/router/lib/layer.js:152:17)
2025-04-23 12:10:48     at next (/opt/test/node_modules/router/lib/route.js:157:13)
2025-04-23 12:10:48     at Route.dispatch (/opt/test/node_modules/router/lib/route.js:117:3)
2025-04-23 12:10:48     at handle (/opt/test/node_modules/router/index.js:435:11)
2025-04-23 12:10:48     at Layer.handleRequest (/opt/test/node_modules/router/lib/layer.js:152:17)
2025-04-23 12:10:48     at /opt/test/node_modules/router/index.js:295:15
2025-04-23 12:10:48     at processParams (/opt/test/node_modules/router/index.js:582:12)
2025-04-23 12:10:48     at next (/opt/test/node_modules/router/index.js:291:5)
2025-04-23 12:10:48     at Function.handle (/opt/test/node_modules/router/index.js:186:3)

[cesco69]

I have also tried

const Client = require("pg-native");
const client = new Client();

Error: Cannot find module './lib/build-result'
2025-04-23 12:20:14 Require stack:
2025-04-23 12:20:14 - /opt/test/node_modules/pg-native/index.js
2025-04-23 12:20:14 - /opt/test/index.js
2025-04-23 12:20:14     at Function._resolveFilename (node:internal/modules/cjs/loader:1405:15)
2025-04-23 12:20:14     at defaultResolveImpl (node:internal/modules/cjs/loader:1061:19)
2025-04-23 12:20:14     at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1066:22)
2025-04-23 12:20:14     at Function._load (node:internal/modules/cjs/loader:1215:37)
2025-04-23 12:20:14     at TracingChannel.traceSync (node:diagnostics_channel:322:14)
2025-04-23 12:20:14     at wrapModuleLoad (node:internal/modules/cjs/loader:235:24)
2025-04-23 12:20:14     at Module.require (node:internal/modules/cjs/loader:1491:12)
2025-04-23 12:20:14     at require (node:internal/modules/helpers:135:16)
2025-04-23 12:20:14     at Object.<anonymous> (/opt/test/node_modules/pg-native/index.js:6:19)
2025-04-23 12:20:14     at Module._compile (node:internal/modules/cjs/loader:1734:14) {
2025-04-23 12:20:14   code: 'MODULE_NOT_FOUND',
2025-04-23 12:20:14   requireStack: [ '/opt/test/node_modules/pg-native/index.js', '/opt/test/index.js' ]
2025-04-23 12:20:14 }

[brenoepics]

This is likely a duplicate of #3429
the same fix (#3428) works for this issue too.

PoC code:

Result with latest `pg`

Native: null
Native Pool: undefined

Result with the PR

Native: PG {
  defaults: {
    host: 'localhost',
    user: 'REDACTED',
    database: undefined,
    password: null,
    connectionString: undefined,
    port: 5432,
    rows: 0,
    binary: false,
    max: 10,
    idleTimeoutMillis: 30000,
    client_encoding: '',
    ssl: false,
    application_name: undefined,
    fallback_application_name: undefined,
    options: undefined,
    parseInputDatesAsUTC: false,
    statement_timeout: false,
    lock_timeout: false,
    idle_in_transaction_session_timeout: false,
    query_timeout: false,
    connect_timeout: 0,
    keepalives: 1,
    keepalives_idle: 0,
    parseInt8: [Setter]
  },
  Client: [Function (anonymous)] { Query: [Function (anonymous)] },
  Query: [Function (anonymous)],
  Pool: [class BoundPool extends Pool],
  _pools: [],
  Connection: [class Connection extends EventEmitter],
  types: {
    getTypeParser: [Function: getTypeParser],
    setTypeParser: [Function: setTypeParser],
    arrayParser: { create: [Function: create] },
    builtins: {
      BOOL: 16,
      BYTEA: 17,
      CHAR: 18,
      INT8: 20,
      INT2: 21,
      INT4: 23,
      REGPROC: 24,
      TEXT: 25,
      OID: 26,
      TID: 27,
      XID: 28,
      CID: 29,
      JSON: 114,
      XML: 142,
      PG_NODE_TREE: 194,
      SMGR: 210,
      PATH: 602,
      POLYGON: 604,
      CIDR: 650,
      FLOAT4: 700,
      FLOAT8: 701,
      ABSTIME: 702,
      RELTIME: 703,
      TINTERVAL: 704,
      CIRCLE: 718,
      MACADDR8: 774,
      MONEY: 790,
      MACADDR: 829,
      INET: 869,
      ACLITEM: 1033,
      BPCHAR: 1042,
      VARCHAR: 1043,
      DATE: 1082,
      TIME: 1083,
      TIMESTAMP: 1114,
      TIMESTAMPTZ: 1184,
      INTERVAL: 1186,
      TIMETZ: 1266,
      BIT: 1560,
      VARBIT: 1562,
      NUMERIC: 1700,
      REFCURSOR: 1790,
      REGPROCEDURE: 2202,
      REGOPER: 2203,
      REGOPERATOR: 2204,
      REGCLASS: 2205,
      REGTYPE: 2206,
      UUID: 2950,
      TXID_SNAPSHOT: 2970,
      PG_LSN: 3220,
      PG_NDISTINCT: 3361,
      PG_DEPENDENCIES: 3402,
      TSVECTOR: 3614,
      TSQUERY: 3615,
      GTSVECTOR: 3642,
      REGCONFIG: 3734,
      REGDICTIONARY: 3769,
      JSONB: 3802,
      REGNAMESPACE: 4089,
      REGROLE: 4096
    }
  },
  DatabaseError: [class DatabaseError extends Error],
  escapeIdentifier: [Function: escapeIdentifier],
  escapeLiteral: [Function: escapeLiteral],
  Result: [class Result],
  utils: {
    prepareValue: [Function: prepareValueWrapper],
    normalizeQueryConfig: [Function: normalizeQueryConfig],
    escapeIdentifier: [Function: escapeIdentifier],
    escapeLiteral: [Function: escapeLiteral]
  }
}
Native Pool: [class BoundPool extends Pool]

[brenoepics]

pg-native also needs exports to ./lib/*, nice catch.

[brianc]

this is fixed in the latest release. sorry for the headache!