diff --git a/pool/common_test.go b/pool/common_test.go
index 586d3679..5f99c9c3 100644
--- a/pool/common_test.go
+++ b/pool/common_test.go
@@ -23,17 +23,9 @@ type execer interface {
 }
 
 func testExec(t *testing.T, db execer) {
-	results, err := db.Exec(context.Background(), "create table foo(id integer primary key);")
+	results, err := db.Exec(context.Background(), "set time zone 'America/Chicago'")
 	require.NoError(t, err)
-	assert.Equal(t, "CREATE TABLE", string(results))
-
-	results, err = db.Exec(context.Background(), "insert into foo(id) values($1)", 1)
-	require.NoError(t, err)
-	assert.Equal(t, "INSERT 0 1", string(results))
-
-	results, err = db.Exec(context.Background(), "drop table foo;")
-	require.NoError(t, err)
-	assert.Equal(t, "DROP TABLE", string(results))
+	assert.EqualValues(t, "SET", results)
 }
 
 type queryer interface {
diff --git a/pool/conn_test.go b/pool/conn_test.go
index 4f6d0117..c1bc46fa 100644
--- a/pool/conn_test.go
+++ b/pool/conn_test.go
@@ -10,6 +10,8 @@ import (
 )
 
 func TestConnExec(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -22,6 +24,8 @@ func TestConnExec(t *testing.T) {
 }
 
 func TestConnQuery(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -34,6 +38,8 @@ func TestConnQuery(t *testing.T) {
 }
 
 func TestConnQueryRow(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -46,6 +52,8 @@ func TestConnQueryRow(t *testing.T) {
 }
 
 func TestConnSendBatch(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -58,6 +66,8 @@ func TestConnSendBatch(t *testing.T) {
 }
 
 func TestConnCopyFrom(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
diff --git a/pool/pool_test.go b/pool/pool_test.go
index 7e14e18a..34ba424d 100644
--- a/pool/pool_test.go
+++ b/pool/pool_test.go
@@ -13,12 +13,16 @@ import (
 )
 
 func TestConnect(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	pool.Close()
 }
 
 func TestParseConfigExtractsPoolArguments(t *testing.T) {
+	t.Parallel()
+
 	config, err := pool.ParseConfig("pool_max_conns=42")
 	assert.NoError(t, err)
 	assert.EqualValues(t, 42, config.MaxConns)
@@ -26,6 +30,8 @@ func TestParseConfigExtractsPoolArguments(t *testing.T) {
 }
 
 func TestConnectCancel(t *testing.T) {
+	t.Parallel()
+
 	ctx, cancel := context.WithCancel(context.Background())
 	cancel()
 	pool, err := pool.Connect(ctx, os.Getenv("PGX_TEST_DATABASE"))
@@ -34,6 +40,8 @@ func TestConnectCancel(t *testing.T) {
 }
 
 func TestPoolAcquireAndConnRelease(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -44,6 +52,8 @@ func TestPoolAcquireAndConnRelease(t *testing.T) {
 }
 
 func TestPoolExec(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -52,6 +62,8 @@ func TestPoolExec(t *testing.T) {
 }
 
 func TestPoolQuery(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -79,6 +91,8 @@ func TestPoolQuery(t *testing.T) {
 }
 
 func TestPoolQueryRow(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -92,6 +106,8 @@ func TestPoolQueryRow(t *testing.T) {
 }
 
 func TestPoolSendBatch(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -107,6 +123,7 @@ func TestPoolSendBatch(t *testing.T) {
 func TestPoolCopyFrom(t *testing.T) {
 	// Not able to use testCopyFrom because it relies on temporary tables and the pool may run subsequent calls under
 	// different connections.
+	t.Parallel()
 
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
@@ -150,6 +167,8 @@ func TestPoolCopyFrom(t *testing.T) {
 }
 
 func TestConnReleaseRollsBackFailedTransaction(t *testing.T) {
+	t.Parallel()
+
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 	pool, err := pool.Connect(ctx, os.Getenv("PGX_TEST_DATABASE"))
@@ -186,6 +205,8 @@ func TestConnReleaseRollsBackFailedTransaction(t *testing.T) {
 }
 
 func TestConnReleaseRollsBackInTransaction(t *testing.T) {
+	t.Parallel()
+
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 	pool, err := pool.Connect(ctx, os.Getenv("PGX_TEST_DATABASE"))
@@ -217,6 +238,8 @@ func TestConnReleaseRollsBackInTransaction(t *testing.T) {
 }
 
 func TestConnReleaseDestroysClosedConn(t *testing.T) {
+	t.Parallel()
+
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 	pool, err := pool.Connect(ctx, os.Getenv("PGX_TEST_DATABASE"))
@@ -237,6 +260,8 @@ func TestConnReleaseDestroysClosedConn(t *testing.T) {
 }
 
 func TestConnPoolQueryConcurrentLoad(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
diff --git a/pool/tx_test.go b/pool/tx_test.go
index 47b1aa82..fc763e1b 100644
--- a/pool/tx_test.go
+++ b/pool/tx_test.go
@@ -10,6 +10,8 @@ import (
 )
 
 func TestTxExec(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -22,6 +24,8 @@ func TestTxExec(t *testing.T) {
 }
 
 func TestTxQuery(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -34,6 +38,8 @@ func TestTxQuery(t *testing.T) {
 }
 
 func TestTxQueryRow(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -46,6 +52,8 @@ func TestTxQueryRow(t *testing.T) {
 }
 
 func TestTxSendBatch(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()
@@ -58,6 +66,8 @@ func TestTxSendBatch(t *testing.T) {
 }
 
 func TestTxCopyFrom(t *testing.T) {
+	t.Parallel()
+
 	pool, err := pool.Connect(context.Background(), os.Getenv("PGX_TEST_DATABASE"))
 	require.NoError(t, err)
 	defer pool.Close()