diff --git a/www/admin/class_test.db.php b/www/admin/class_test.db.php
index a6cd2662..ee19d98a 100644
--- a/www/admin/class_test.db.php
+++ b/www/admin/class_test.db.php
@@ -209,13 +209,12 @@ print "INSERT WITH NO PRIMARY KEY WITH RETURNING STATUS: " . Support::printToStr
 print "</pre>";
 
 // READ PREPARE
-if (
-	$db->dbPrepare(
-		'sel_test_foo',
-		"SELECT test_foo_id, test, some_bool, string_a, number_a, number_a_numeric, some_time "
-		. "FROM test_foo ORDER BY test_foo_id DESC LIMIT 5"
-	) === false
-) {
+$q_prep = "SELECT test_foo_id, test, some_bool, string_a, number_a, "
+	. "number_a_numeric, some_time "
+	. "FROM test_foo "
+	. "WHERE test = $1 "
+	. "ORDER BY test_foo_id DESC LIMIT 5";
+if ($db->dbPrepare('sel_test_foo', $q_prep) === false) {
 	print "Error in sel_test_foo prepare<br>";
 } else {
 	$max_rows = 6;
@@ -229,6 +228,29 @@ if (
 		$i++;
 	}
 }
+// prepre a second time on normal connection
+if ($db->dbPrepare('sel_test_foo', $q_prep) === false) {
+	print "Error prepareing<br>";
+	print "ERROR (dbPrepare on same query): "
+	. $db->dbGetLastError() . "/" . $db->dbGetLastWarning() . "/"
+	. "<pre>" . print_r($db->dbGetCombinedErrorHistory(), true) . "</pre><br>";
+}
+// NOTE: try to replacate connection still exists if script is run a second time
+// open pg bouncer connection
+$db_pgb = new CoreLibs\DB\IO($DB_CONFIG['test_pgbouncer'], $log);
+print "[PGB] DBINFO: " . $db_pgb->dbInfo() . "<br>";
+if ($db->dbPrepare('pgb_sel_test_foo', $q_prep) === false) {
+	print "[PGB] [1] Error in pgb_sel_test_foo prepare<br>";
+} else {
+	print "[PGB] [1] pgb_sel_test_foo prepare OK<br>";
+}
+// second prepare
+if ($db->dbPrepare('pgb_sel_test_foo', $q_prep) === false) {
+	print "[PGB] [2] Error in pgb_sel_test_foo prepare<br>";
+} else {
+	print "[PGB] [2] pgb_sel_test_foo prepare OK<br>";
+}
+$db_pgb->dbClose();
 
 # db write class test
 $table = 'test_foo';
diff --git a/www/configs/config.db.php b/www/configs/config.db.php
index 3c4c06e4..23bf44d3 100644
--- a/www/configs/config.db.php
+++ b/www/configs/config.db.php
@@ -17,7 +17,20 @@ $DB_CONFIG = [
 		'db_user' => $_ENV['DB_USER.TEST'] ?? '',
 		'db_pass' => $_ENV['DB_PASS.TEST'] ?? '',
 		'db_host' => $_ENV['DB_HOST.TEST'] ?? '',
-		'db_port' => 5432,
+		'db_port' => $_ENV['DB_PORT.PG'] ?? 5432,
+		'db_schema' => 'public',
+		'db_type' => 'pgsql',
+		'db_encoding' => '',
+		'db_ssl' => 'allow', // allow, disable, require, prefer
+		'db_debug' => true, // turn on logging or not
+	],
+	// same as above, but uses pg bouncer
+	'test_pgbouncer' => [
+		'db_name' => $_ENV['DB_NAME.TEST'] ?? '',
+		'db_user' => $_ENV['DB_USER.TEST'] ?? '',
+		'db_pass' => $_ENV['DB_PASS.TEST'] ?? '',
+		'db_host' => $_ENV['DB_HOST.TEST'] ?? '',
+		'db_port' => $_ENV['DB_PORT.PG_BOUNCER'] ?? 5432,
 		'db_schema' => 'public',
 		'db_type' => 'pgsql',
 		'db_encoding' => '',
diff --git a/www/configs/config.master.php b/www/configs/config.master.php
index 82abd0c9..163f957b 100644
--- a/www/configs/config.master.php
+++ b/www/configs/config.master.php
@@ -252,7 +252,7 @@ if ($is_secure) {
 define('DB_CONFIG_NAME', $SITE_CONFIG[HOST_NAME]['db_host']);
 define('DB_CONFIG', $DB_CONFIG[DB_CONFIG_NAME] ?? []);
 // because we can't change constant, but we want to for db debug flag
-$GLOBALS['DB_CONFIG'] = DB_CONFIG;
+$GLOBALS['DB_CONFIG_SET'] = DB_CONFIG;
 // define('DB_CONFIG_TARGET', SITE_CONFIG[$HOST_NAME]['db_host_target']);
 // define('DB_CONFIG_OTHER', SITE_CONFIG[$HOST_NAME]['db_host_other']);
 // override for login and global schemas
diff --git a/www/lib/CoreLibs/DB/IO.php b/www/lib/CoreLibs/DB/IO.php
index df9c9d10..83bc6b61 100644
--- a/www/lib/CoreLibs/DB/IO.php
+++ b/www/lib/CoreLibs/DB/IO.php
@@ -2963,7 +2963,7 @@ class IO
 	 * Either as single array level for single insert
 	 * Or nested array for multiple insert values
 	 *
-	 * If key was set only returns tghose values directly or as array
+	 * If key was set only returns those values directly or as array
 	 *
 	 * On multiple insert return the position for which to return can be set too
 	 *
@@ -2978,7 +2978,7 @@ class IO
 		// return as is if key is null
 		if ($key === null) {
 			if (count($this->insert_id_arr) == 1) {
-				// return as nul if not found
+				// return as null if not found
 				return $this->insert_id_arr[0] ?? null;
 			} else {
 				return $this->insert_id_arr;