diff --git a/cjs/src/connection.js b/cjs/src/connection.js
index 07f6716702ac888215c86ad6e0071aaf55ae519c..dc24963ce2dd0a219f366f80ba9847548ba23a52 100644
--- a/cjs/src/connection.js
+++ b/cjs/src/connection.js
@@ -438,6 +438,7 @@ function Connection(options, queues = {}, { onopen = noop, onend = noop, onclose
     remaining = 0
     incomings = null
     clearImmediate(nextWriteTimer)
+    chunk = nextWriteTimer = null
     socket.removeListener('data', data)
     socket.removeListener('connect', connected)
     idleTimer.cancel()
@@ -451,6 +452,9 @@ function Connection(options, queues = {}, { onopen = noop, onend = noop, onclose
       return reconnect()
 
     !hadError && (query || sent.length) && error(Errors.connection('CONNECTION_CLOSED', options, socket))
+    query = results = errorResponse = null
+    result = new Result()
+    rows = 0
     closedTime = performance.now()
     hadError && options.shared.retries++
     delay = (typeof backoff === 'function' ? backoff(options.shared.retries) : backoff) * 1000
diff --git a/cjs/src/index.js b/cjs/src/index.js
index f09c61c7e998f411560b95c9a8e1ed6a97972c11..04dded5c7e2cdc34ac01b29a87cc93248ec8c9c6 100644
--- a/cjs/src/index.js
+++ b/cjs/src/index.js
@@ -216,8 +216,19 @@ function Postgres(a, b) {
       : move(c, reserved)
     c.reserved.release = true
 
+    let closedError
+    c.onclose = error => {
+      closedError = error
+      while (queue.length)
+        queue.shift().reject(error)
+    }
+
     const sql = Sql(handler)
     sql.release = () => {
+      if (closedError)
+        return
+      closedError = Errors.connection('CONNECTION_RELEASED', options)
+      c.onclose = null
       c.reserved = null
       onopen(c)
     }
@@ -225,6 +236,8 @@ function Postgres(a, b) {
     return sql
 
     function handler(q) {
+      if (closedError)
+        return q.reject(closedError)
       c.queue === full
         ? queue.push(q)
         : c.execute(q) || move(c, full)
@@ -236,13 +249,19 @@ function Postgres(a, b) {
     const queries = Queue()
     let savepoints = 0
       , connection
+      , closedError
       , prepare = null
 
     try {
       await sql.unsafe('begin ' + options.replace(/[^a-z ]/ig, ''), [], { onexecute }).execute()
       return await Promise.race([
         scope(connection, fn),
-        new Promise((_, reject) => connection.onclose = reject)
+        new Promise((_, reject) => connection.onclose = error => {
+          closedError = error
+          while (queries.length)
+            queries.shift().reject(error)
+          reject(error)
+        })
       ])
     } catch (error) {
       throw error
@@ -290,6 +309,8 @@ function Postgres(a, b) {
 
       function handler(q) {
         q.catch(e => uncaughtError || (uncaughtError = e))
+        if (closedError)
+          return q.reject(closedError)
         c.queue === full
           ? queries.push(q)
           : c.execute(q) || move(c, full)
diff --git a/src/connection.js b/src/connection.js
index 1b1cccde43b4570d5d071d6ffaab2669b3c2065a..c95c326a2747c680c2c22b04b1c5f2e27a4e8c90 100644
--- a/src/connection.js
+++ b/src/connection.js
@@ -438,6 +438,7 @@ function Connection(options, queues = {}, { onopen = noop, onend = noop, onclose
     remaining = 0
     incomings = null
     clearImmediate(nextWriteTimer)
+    chunk = nextWriteTimer = null
     socket.removeListener('data', data)
     socket.removeListener('connect', connected)
     idleTimer.cancel()
@@ -451,6 +452,9 @@ function Connection(options, queues = {}, { onopen = noop, onend = noop, onclose
       return reconnect()
 
     !hadError && (query || sent.length) && error(Errors.connection('CONNECTION_CLOSED', options, socket))
+    query = results = errorResponse = null
+    result = new Result()
+    rows = 0
     closedTime = performance.now()
     hadError && options.shared.retries++
     delay = (typeof backoff === 'function' ? backoff(options.shared.retries) : backoff) * 1000
diff --git a/src/index.js b/src/index.js
index c7fba3dace20173f4cb13f3f138bb6d213b43683..f0888986add8ba02c8853f792ae42dd1cec88c82 100644
--- a/src/index.js
+++ b/src/index.js
@@ -216,8 +216,19 @@ function Postgres(a, b) {
       : move(c, reserved)
     c.reserved.release = true
 
+    let closedError
+    c.onclose = error => {
+      closedError = error
+      while (queue.length)
+        queue.shift().reject(error)
+    }
+
     const sql = Sql(handler)
     sql.release = () => {
+      if (closedError)
+        return
+      closedError = Errors.connection('CONNECTION_RELEASED', options)
+      c.onclose = null
       c.reserved = null
       onopen(c)
     }
@@ -225,6 +236,8 @@ function Postgres(a, b) {
     return sql
 
     function handler(q) {
+      if (closedError)
+        return q.reject(closedError)
       c.queue === full
         ? queue.push(q)
         : c.execute(q) || move(c, full)
@@ -236,13 +249,19 @@ function Postgres(a, b) {
     const queries = Queue()
     let savepoints = 0
       , connection
+      , closedError
       , prepare = null
 
     try {
       await sql.unsafe('begin ' + options.replace(/[^a-z ]/ig, ''), [], { onexecute }).execute()
       return await Promise.race([
         scope(connection, fn),
-        new Promise((_, reject) => connection.onclose = reject)
+        new Promise((_, reject) => connection.onclose = error => {
+          closedError = error
+          while (queries.length)
+            queries.shift().reject(error)
+          reject(error)
+        })
       ])
     } catch (error) {
       throw error
@@ -290,6 +309,8 @@ function Postgres(a, b) {
 
       function handler(q) {
         q.catch(e => uncaughtError || (uncaughtError = e))
+        if (closedError)
+          return q.reject(closedError)
         c.queue === full
           ? queries.push(q)
           : c.execute(q) || move(c, full)