diff --git a/htdocs/product/stock/productlot_list.php b/htdocs/product/stock/productlot_list.php
index 92172643096..74abbad9140 100644
--- a/htdocs/product/stock/productlot_list.php
+++ b/htdocs/product/stock/productlot_list.php
@@ -225,18 +225,32 @@ if ($object->ismultientitymanaged == 1) {
 	$sql .= " WHERE 1 = 1";
 }
 foreach ($search as $key => $val) {
-	if ($key == 'status' && $search[$key] == -1) {
-		continue;
-	}
-	$mode_search = (($object->isInt($object->fields[$key]) || $object->isFloat($object->fields[$key])) ? 1 : 0);
-	if (strpos($object->fields[$key]['type'], 'integer:') === 0) {
-		if ($search[$key] == '-1') {
-			$search[$key] = '';
+	if (array_key_exists($key, $object->fields)) {
+		if ($key == 'status' && $search[$key] == -1) {
+			continue;
+		}
+		$mode_search = (($object->isInt($object->fields[$key]) || $object->isFloat($object->fields[$key])) ? 1 : 0);
+		if ((strpos($object->fields[$key]['type'], 'integer:') === 0) || (strpos($object->fields[$key]['type'], 'sellist:') === 0) || !empty($object->fields[$key]['arrayofkeyval'])) {
+			if ($search[$key] == '-1' || ($search[$key] === '0' && (empty($object->fields[$key]['arrayofkeyval']) || !array_key_exists('0', $object->fields[$key]['arrayofkeyval'])))) {
+				$search[$key] = '';
+			}
+			$mode_search = 2;
+		}
+		if ($search[$key] != '') {
+			$sql .= natural_search($key, $search[$key], (($key == 'status') ? 2 : $mode_search));
+		}
+	} else {
+		if (preg_match('/(_dtstart|_dtend)$/', $key) && $search[$key] != '') {
+			$columnName = preg_replace('/(_dtstart|_dtend)$/', '', $key);
+			if (preg_match('/^(date|timestamp|datetime)/', $object->fields[$columnName]['type'])) {
+				if (preg_match('/_dtstart$/', $key)) {
+					$sql .= " AND t.".$columnName." >= '".$db->idate($search[$key])."'";
+				}
+				if (preg_match('/_dtend$/', $key)) {
+					$sql .= " AND t." . $columnName . " <= '" . $db->idate($search[$key]) . "'";
+				}
+			}
 		}
-		$mode_search = 2;
-	}
-	if ($search[$key] != '') {
-		$sql .= natural_search($key, $search[$key], (($key == 'status') ? 2 : $mode_search));
 	}
 }
 if ($search_all) {
@@ -267,35 +281,45 @@ $sql .= $hookmanager->resPrint;
  $sql=preg_replace('/,\s*$/','', $sql);
  */
 
-$sql .= $db->order($sortfield, $sortorder);
-
 // Count total nb of records
 $nbtotalofrecords = '';
 if (empty($conf->global->MAIN_DISABLE_FULL_SCANLIST)) {
-	$resql = $db->query($sql);
-	$nbtotalofrecords = $db->num_rows($resql);
+	/* This old and fast method to get and count full list returns all record so use a high amount of memory.
+	 $resql = $db->query($sql);
+	 $nbtotalofrecords = $db->num_rows($resql);
+	 */
+	/* The slow method does not consume memory on mysql (not tested on pgsql) */
+	/*$resql = $db->query($sql, 0, 'auto', 1);
+	 while ($db->fetch_object($resql)) {
+	 $nbtotalofrecords++;
+	 }*/
+	/* The fast and low memory method to get and count full list converts the sql into a sql count */
+	$sqlforcount = preg_replace('/^SELECT[a-z0-9\._\s\(\),]+FROM/i', 'SELECT COUNT(*) as nbtotalofrecords FROM', $sql);
+	$resql = $db->query($sqlforcount);
+	$objforcount = $db->fetch_object($resql);
+	$nbtotalofrecords = $objforcount->nbtotalofrecords;
 	if (($page * $limit) > $nbtotalofrecords) {	// if total of record found is smaller than page * limit, goto and load page 0
 		$page = 0;
 		$offset = 0;
 	}
+	$db->free($resql);
 }
-// if total of record found is smaller than limit, no need to do paging and to restart another select with limits set.
-if (is_numeric($nbtotalofrecords) && ($limit > $nbtotalofrecords || empty($limit))) {
-	$num = $nbtotalofrecords;
-} else {
-	if ($limit) {
-		$sql .= $db->plimit($limit + 1, $offset);
-	}
 
-	$resql = $db->query($sql);
-	if (!$resql) {
-		dol_print_error($db);
-		exit;
-	}
-
-	$num = $db->num_rows($resql);
+// Complete request and execute it with limit
+$sql .= $db->order($sortfield, $sortorder);
+if ($limit) {
+	$sql .= $db->plimit($limit + 1, $offset);
 }
 
+$resql = $db->query($sql);
+if (!$resql) {
+	dol_print_error($db);
+	exit;
+}
+
+$num = $db->num_rows($resql);
+
+
 // Direct jump if only one record found
 if ($num == 1 && !empty($conf->global->MAIN_SEARCH_DIRECT_OPEN_IF_ONLY_ONE) && $search_all && !$page) {
 	$obj = $db->fetch_object($resql);