From d544e07a711d609f3fe1c5263f5ef7e0f6a44be0 Mon Sep 17 00:00:00 2001
From: Ryan Staples <42743016+Srayman@users.noreply.github.com>
Date: Tue, 15 Nov 2022 10:08:46 -0500
Subject: [PATCH 1/4] change instanceof to isDate

---
 packages/pg/lib/utils.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/pg/lib/utils.js b/packages/pg/lib/utils.js
index d63fe68f1..697d5f950 100644
--- a/packages/pg/lib/utils.js
+++ b/packages/pg/lib/utils.js
@@ -4,6 +4,8 @@ const crypto = require('crypto')
 
 const defaults = require('./defaults')
 
+const util = require('util')
+
 function escapeElement(elementRepresentation) {
   var escaped = elementRepresentation.replace(/\\/g, '\\\\').replace(/"/g, '\\"')
 
@@ -52,7 +54,7 @@ var prepareValue = function (val, seen) {
     }
     return buf.slice(val.byteOffset, val.byteOffset + val.byteLength) // Node.js v4 does not support those Buffer.from params
   }
-  if (val instanceof Date) {
+  if (util.types.isDate(val)) {
     if (defaults.parseInputDatesAsUTC) {
       return dateToStringUTC(val)
     } else {

From d3749de203ab8525210176c6f02e4275685d41d3 Mon Sep 17 00:00:00 2001
From: Ryan Staples <42743016+Srayman@users.noreply.github.com>
Date: Thu, 24 Nov 2022 12:58:00 -0500
Subject: [PATCH 2/4] use both methods to check for valid Date

---
 packages/pg/lib/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/pg/lib/utils.js b/packages/pg/lib/utils.js
index 697d5f950..ec523aba6 100644
--- a/packages/pg/lib/utils.js
+++ b/packages/pg/lib/utils.js
@@ -54,7 +54,7 @@ var prepareValue = function (val, seen) {
     }
     return buf.slice(val.byteOffset, val.byteOffset + val.byteLength) // Node.js v4 does not support those Buffer.from params
   }
-  if (util.types.isDate(val)) {
+  if (val instanceof Date || util.types.isDate(val)) {
     if (defaults.parseInputDatesAsUTC) {
       return dateToStringUTC(val)
     } else {

From 91c696939c92dfa9c36a222e9695314889257597 Mon Sep 17 00:00:00 2001
From: Ryan Staples <42743016+Srayman@users.noreply.github.com>
Date: Thu, 24 Nov 2022 13:17:24 -0500
Subject: [PATCH 3/4] add test for PR 2862

---
 .../test/integration/gh-issues/2862-tests.js  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 packages/pg/test/integration/gh-issues/2862-tests.js

diff --git a/packages/pg/test/integration/gh-issues/2862-tests.js b/packages/pg/test/integration/gh-issues/2862-tests.js
new file mode 100644
index 000000000..d04117779
--- /dev/null
+++ b/packages/pg/test/integration/gh-issues/2862-tests.js
@@ -0,0 +1,27 @@
+'use strict'
+var helper = require('./../test-helper')
+var assert = require('assert')
+var util = require('util')
+var vm = require('vm');
+
+const suite = new helper.Suite()
+
+suite.test('Handle date objects as Date', async (done) => {
+  const date = new Date();
+  const dateObj = await vm.runInNewContext('new Date()');
+  assert(!(dateObj instanceof Date))
+  assert(util.types.isDate(dateObj))
+  const client = new helper.pg.Client()
+  client.connect()
+
+  await client.query('CREATE TEMP TABLE foo(bar TIMESTAMP, bar2 TIMESTAMP)')
+  await client.query('INSERT INTO foo(bar, bar2) VALUES($1, $2)', [date, dateObj])
+  const results = await client.query('SELECT * FROM foo')
+  const row = results.rows[0]
+  const dbDate = row.bar
+  const dbDateObj = row.bar2
+  assert.deepEqual(dbDate, date)
+  assert.deepEqual(dbDateObj, dateObj)
+  await client.end()
+  done()
+})

From fbd2138ce89f3f4feab9fda6e7910c59d0a95038 Mon Sep 17 00:00:00 2001
From: Ryan Staples <42743016+Srayman@users.noreply.github.com>
Date: Fri, 9 Dec 2022 08:56:58 -0500
Subject: [PATCH 4/4] use only isDate(date) in place of instanceof Date

---
 packages/pg/lib/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/pg/lib/utils.js b/packages/pg/lib/utils.js
index ec523aba6..697d5f950 100644
--- a/packages/pg/lib/utils.js
+++ b/packages/pg/lib/utils.js
@@ -54,7 +54,7 @@ var prepareValue = function (val, seen) {
     }
     return buf.slice(val.byteOffset, val.byteOffset + val.byteLength) // Node.js v4 does not support those Buffer.from params
   }
-  if (val instanceof Date || util.types.isDate(val)) {
+  if (util.types.isDate(val)) {
     if (defaults.parseInputDatesAsUTC) {
       return dateToStringUTC(val)
     } else {