diff --git a/include/zbxdb.h b/include/zbxdb.h
index ff00865da8..60f87ee6b7 100644
--- a/include/zbxdb.h
+++ b/include/zbxdb.h
@@ -30,6 +30,7 @@
 #define ZBX_DB_TLS_CONNECT_REQUIRED_TXT		"required"
 #define ZBX_DB_TLS_CONNECT_VERIFY_CA_TXT	"verify_ca"
 #define ZBX_DB_TLS_CONNECT_VERIFY_FULL_TXT	"verify_full"
+#define ZBX_DB_SESSION_TARGET_ATTR_READ_WRITE	"read-write"
 
 typedef char	**DB_ROW;
 typedef struct zbx_db_result	*DB_RESULT;
@@ -46,7 +47,9 @@ zbx_db_value_t;
 
 typedef struct
 {
+	char	*config_dbconnstring;
 	char	*config_dbhost;
+	char	*config_dbtargetattr;
 	char	*config_dbname;
 	char	*config_dbschema;
 	char	*config_dbuser;
diff --git a/src/libs/zbxdb/db.c b/src/libs/zbxdb/db.c
index 1801f436b4..0b571e487c 100644
--- a/src/libs/zbxdb/db.c
+++ b/src/libs/zbxdb/db.c
@@ -411,11 +411,13 @@ void	zbx_db_init_autoincrement_options_basic(void)
 int	zbx_db_connect_basic(const zbx_config_dbhigh_t *config_dbhigh)
 {
 	int		ret = ZBX_DB_OK, last_txn_error, last_txn_level;
-	const char	*host, *user, *password, *dbname, *dbschema, *dbsocket, *tls_connect, *cert, *key, *ca, *cipher,
+	const char	*connectionstring, *host, *session_target_attr, *user, *password, *dbname, *dbschema, *dbsocket, *tls_connect, *cert, *key, *ca, *cipher,
 			*cipher_13;
 	const int	port = config_dbhigh->config_dbport;
 
+	connectionstring = config_dbhigh->config_dbconnstring;
 	host = config_dbhigh->config_dbhost;
+	session_target_attr = config_dbhigh->config_dbtargetattr;
 	user = config_dbhigh->config_dbuser;
 	password = config_dbhigh->config_dbpassword;
 	dbname = config_dbhigh->config_dbname;
@@ -764,72 +766,84 @@ int	zbx_db_connect_basic(const zbx_config_dbhigh_t *config_dbhigh)
 	ZBX_UNUSED(cipher);
 	ZBX_UNUSED(cipher_13);
 
-	if (NULL != tls_connect)
+	if NULL != connectionstring
 	{
-		keywords[i] = "sslmode";
+		conn = PQconnectdb(connectionstring);
+	} else {
+		if (NULL != tls_connect)
+		{
+			keywords[i] = "sslmode";
 
-		if (0 == strcmp(tls_connect, ZBX_DB_TLS_CONNECT_REQUIRED_TXT))
-			values[i++] = "require";
-		else if (0 == strcmp(tls_connect, ZBX_DB_TLS_CONNECT_VERIFY_CA_TXT))
-			values[i++] = "verify-ca";
-		else
-			values[i++] = "verify-full";
-	}
+			if (0 == strcmp(tls_connect, ZBX_DB_TLS_CONNECT_REQUIRED_TXT))
+				values[i++] = "require";
+			else if (0 == strcmp(tls_connect, ZBX_DB_TLS_CONNECT_VERIFY_CA_TXT))
+				values[i++] = "verify-ca";
+			else
+				values[i++] = "verify-full";
+		}
 
-	if (NULL != cert)
-	{
-		keywords[i] = "sslcert";
-		values[i++] = cert;
-	}
+		if (NULL != cert)
+		{
+			keywords[i] = "sslcert";
+			values[i++] = cert;
+		}
 
-	if (NULL != key)
-	{
-		keywords[i] = "sslkey";
-		values[i++] = key;
-	}
+		if (NULL != key)
+		{
+			keywords[i] = "sslkey";
+			values[i++] = key;
+		}
 
-	if (NULL != ca)
-	{
-		keywords[i] = "sslrootcert";
-		values[i++] = ca;
-	}
+		if (NULL != ca)
+		{
+			keywords[i] = "sslrootcert";
+			values[i++] = ca;
+		}
 
-	if (NULL != host)
-	{
-		keywords[i] = "host";
-		values[i++] = host;
-	}
+		if (NULL != host)
+		{
+			keywords[i] = "host";
+			values[i++] = host;
+		}
 
-	if (NULL != dbname)
-	{
-		keywords[i] = "dbname";
-		values[i++] = dbname;
-	}
+		if (NULL != dbname)
+		{
+			keywords[i] = "dbname";
+			values[i++] = dbname;
+		}
 
-	if (NULL != user)
-	{
-		keywords[i] = "user";
-		values[i++] = user;
-	}
+		if (NULL != user)
+		{
+			keywords[i] = "user";
+			values[i++] = user;
+		}
 
-	if (NULL != password)
-	{
-		keywords[i] = "password";
-		values[i++] = password;
-	}
+		if (NULL != password)
+		{
+			keywords[i] = "password";
+			values[i++] = password;
+		}
 
-	if (0 != port)
-	{
-		keywords[i] = "port";
-		values[i++] = cport = zbx_dsprintf(cport, "%d", port);
-	}
+		if (0 != port)
+		{
+			keywords[i] = "port";
+			values[i++] = cport = zbx_dsprintf(cport, "%d", port);
+		}
 
-	keywords[i] = NULL;
-	values[i] = NULL;
+		if (NULL != target_session_attr)
+		{
+			keywords[i] = "target_session_attr";
+			values[i++] = target_session_attr;
+		}
+
+		keywords[i] = NULL;
+		values[i] = NULL;
 
-	conn = PQconnectdbParams(keywords, values, 0);
+		conn = PQconnectdbParams(keywords, values, 0);
 
-	zbx_free(cport);
+		zbx_free(cport);
+
+	}
 
 	/* check to see that the backend connection was successfully made */
 	if (CONNECTION_OK != PQstatus(conn))
diff --git a/src/zabbix_server/server.c b/src/zabbix_server/server.c
index cf590e6e32..8b95c79520 100644
--- a/src/zabbix_server/server.c
+++ b/src/zabbix_server/server.c
@@ -615,6 +615,9 @@ static void	zbx_set_defaults(void)
 	if (NULL == zbx_config_dbhigh->config_dbhost)
 		zbx_config_dbhigh->config_dbhost = zbx_strdup(zbx_config_dbhigh->config_dbhost, "localhost");
 
+	if (NULL == zbx_config_dbhigh->config_dbtargetattr)
+		zbx_config_dbhigh->config_dbtargetattr = zbx_strdup(zbx_config_dbhigh->config_dbtargetattr, ZBX_DB_SESSION_TARGET_ATTR_READ_WRITE);
+
 	if (NULL == CONFIG_SNMPTRAP_FILE)
 		CONFIG_SNMPTRAP_FILE = zbx_strdup(CONFIG_SNMPTRAP_FILE, "/tmp/zabbix_traps.tmp");
 
@@ -911,8 +914,12 @@ static void	zbx_load_config(ZBX_TASK_EX *task)
 			PARM_OPT,	0,			0},
 		{"ExternalScripts",		&CONFIG_EXTERNALSCRIPTS,		TYPE_STRING,
 			PARM_OPT,	0,			0},
+		{"DBConnectionString",	&(zbx_config_dbhigh->config_dbconnstring),	TYPE_STRING,
+			PARM_OPT,	0,			0},
 		{"DBHost",			&(zbx_config_dbhigh->config_dbhost),	TYPE_STRING,
 			PARM_OPT,	0,			0},
+		{"DBTargetSessionAttr",	&(zbx_config_dbhigh->config_dbtargetattr),	TYPE_STRING,
+			PARM_OPT,	0,			0},
 		{"DBName",			&(zbx_config_dbhigh->config_dbname),	TYPE_STRING,
 			PARM_MAND,	0,			0},
 		{"DBSchema",			&(zbx_config_dbhigh->config_dbschema),	TYPE_STRING,
diff --git a/ui/conf/zabbix.conf.php.example b/ui/conf/zabbix.conf.php.example
index 6568b6a8a3..4daf3f6910 100644
--- a/ui/conf/zabbix.conf.php.example
+++ b/ui/conf/zabbix.conf.php.example
@@ -2,11 +2,18 @@
 // Zabbix GUI configuration file.
 
 $DB['TYPE']				= 'MYSQL';
+// If $DB['CONNECTIONSTRING'] used with PostgreSQL, then rest of DB connection parameters are ignored for connection.
+// $DB['DATABASE'] and $DB['USER'] are required for internal purposes.
+//$DB['CONNECTIONSTRING'] = 'postgresql://zabbix:ZabbixPassword@localhost/zabbix'; 
+
+// DB Connection parameters
 $DB['SERVER']			= 'localhost';
 $DB['PORT']				= '0';
 $DB['DATABASE']			= 'zabbix';
 $DB['USER']				= 'zabbix';
 $DB['PASSWORD']			= '';
+// Uncomment and set to desired values for PG target_session_attr. If not set or empty, defaults to 'read-write'.
+$DB['TARGET_SESSION_ATTR'] = '';
 
 // Schema name. Used for PostgreSQL.
 $DB['SCHEMA']			= '';
diff --git a/ui/include/classes/core/CConfigFile.php b/ui/include/classes/core/CConfigFile.php
index 9e2fd882ff..4a6b3c6602 100644
--- a/ui/include/classes/core/CConfigFile.php
+++ b/ui/include/classes/core/CConfigFile.php
@@ -94,6 +94,14 @@ class CConfigFile {
 		$this->config['DB']['TYPE'] = $DB['TYPE'];
 		$this->config['DB']['DATABASE'] = $DB['DATABASE'];
 
+		if (isset($DB['CONNECTIONSTRING'])) {
+			$this->config['DB']['CONNECTIONSTRING'] = $DB['CONNECTIONSTRING'];
+		}
+
+		if (isset($DB['TARGET_SESSION_ATTR'])) {
+			$this->config['DB']['TARGET_SESSION_ATTR'] = $DB['TARGET_SESSION_ATTR'];
+		}
+
 		if (isset($DB['SERVER'])) {
 			$this->config['DB']['SERVER'] = $DB['SERVER'];
 		}
@@ -254,12 +262,19 @@ class CConfigFile {
 '<?php
 // Zabbix GUI configuration file.
 
+// If $DB[\'CONNECTIONSTRING\'] used with PostgreSQL, then rest of DB connection parameters are ignored for connection.
+// $DB[\'DATABASE\'] and $DB[\'USER\'] are required for internal purposes.
+// $DB[\'CONNECTIONSTRING\']			= \''.addcslashes($this->config['DB']['CONNECTIONSTRING'], "'\\") . '\';
+
+// DB Connection parameters
 $DB[\'TYPE\']			= \''.addcslashes($this->config['DB']['TYPE'], "'\\").'\';
 $DB[\'SERVER\']			= \''.addcslashes($this->config['DB']['SERVER'], "'\\").'\';
 $DB[\'PORT\']			= \''.addcslashes($this->config['DB']['PORT'], "'\\").'\';
 $DB[\'DATABASE\']			= \''.addcslashes($this->config['DB']['DATABASE'], "'\\").'\';
 $DB[\'USER\']			= \''.addcslashes($this->config['DB']['USER'], "'\\").'\';
 $DB[\'PASSWORD\']			= \''.addcslashes($this->config['DB']['PASSWORD'], "'\\").'\';
+// Uncomment and set to desired values for PG target_session_attr. If not set or empty, defaults to \'read-write\'.
+$DB[\'TARGET_SESSION_ATTR\']			= \''.addcslashes($this->config['DB']['TARGET_SESSION_ATTR'], "'\\") . '\';
 
 // Schema name. Used for PostgreSQL.
 $DB[\'SCHEMA\']			= \''.addcslashes($this->config['DB']['SCHEMA'], "'\\").'\';
diff --git a/ui/include/classes/db/PostgresqlDbBackend.php b/ui/include/classes/db/PostgresqlDbBackend.php
index 7f61bbc511..d6ecb16f60 100644
--- a/ui/include/classes/db/PostgresqlDbBackend.php
+++ b/ui/include/classes/db/PostgresqlDbBackend.php
@@ -44,6 +44,13 @@ class PostgresqlDbBackend extends DbBackend {
 	 */
 	protected $user = '';
 
+	/**
+	 * Target session attrs.
+	 *
+	 * @var string
+	 */
+	protected $target_session_attrs = '';
+
 	/**
 	 * Check if 'dbversion' table exists.
 	 *
@@ -189,6 +196,17 @@ class PostgresqlDbBackend extends DbBackend {
 		return $is_secure;
 	}
 
+	/**
+	 * Sets target_session_attrs.
+	 *
+	 * @param string $target_session_attrs    Postgres target_session_attr parameter value.
+	 *
+	 */
+	public function set_target_attr($target_session_attrs)
+	{
+		$this->target_session_attrs = $target_session_attrs;
+	}
+
 	/**
 	 * Create connection to database server.
 	 *
@@ -217,6 +235,10 @@ class PostgresqlDbBackend extends DbBackend {
 			];
 		}
 
+		$params += [
+			'target_session_attrs' => $this->target_session_attrs ? $this->target_session_attrs : 'read-write'
+		];
+
 		$conn_string = '';
 
 		foreach ($params as $key => $param) {
@@ -233,6 +255,33 @@ class PostgresqlDbBackend extends DbBackend {
 		return $resource;
 	}
 
+	/**
+	 * Create connection to database server using connectionstring.
+	 *
+	 * @param string $connectionstring    ConnectionString to connect to PG
+	 * @param string $user                User name.
+	 * @param string $dbname              Database name.
+	 * @param string $schema              DB schema.
+	 *
+	 * @param
+	 * @return resource|null
+	 */
+	public function connect_connectionstring($connectionstring, $user, $dbname, $schema)
+	{
+		$this->user = $user;
+		$this->dbname = $dbname;
+		$this->schema = ($schema) ? $schema : 'public';
+
+		$resource = @pg_connect($connectionstring);
+
+		if (!$resource) {
+			$this->setError('Error connecting to database.');
+			return null;
+		}
+
+		return $resource;
+	}
+
 	/**
 	 * Initialize database connection.
 	 *
diff --git a/ui/include/db.inc.php b/ui/include/db.inc.php
index cf9b4af1f2..1f8365234b 100644
--- a/ui/include/db.inc.php
+++ b/ui/include/db.inc.php
@@ -65,7 +65,14 @@ function DBconnect(&$error) {
 		);
 	}
 
-	$DB['DB'] = $db->connect($DB['SERVER'], $DB['PORT'], $DB['USER'], $DB['PASSWORD'], $DB['DATABASE'], $DB['SCHEMA']);
+	if ($DB['TYPE'] == ZBX_DB_POSTGRESQL && isset($DB['TARGET_SESSION_ATTR'])) {
+		$db->set_target_attr($DB['TARGET_SESSION_ATTR']);
+	}
+	if ($DB['TYPE'] == ZBX_DB_POSTGRESQL and isset($DB['CONNECTIONSTRING']) and $DB['CONNECTIONSTRING']) {
+		$DB['DB'] = $db->connect_connectionstring($DB['CONNECTIONSTRING'], $DB['USER'], $DB['DATABASE'], $DB['SCHEMA']);
+	} else {
+		$DB['DB'] = $db->connect($DB['SERVER'], $DB['PORT'], $DB['USER'], $DB['PASSWORD'], $DB['DATABASE'], $DB['SCHEMA']);
+	}
 
 	if ($DB['DB']) {
 		$db->init();