diff --git a/src/db/CapacitorStorage.php b/src/db/CapacitorStorage.php
index 85a0d39..d808656 100644
--- a/src/db/CapacitorStorage.php
+++ b/src/db/CapacitorStorage.php
@@ -2,6 +2,7 @@
 namespace nur\sery\db;
 
 use nur\sery\cl;
+use nur\sery\file\_File;
 use nur\sery\php\func;
 use nur\sery\ValueException;
 
@@ -69,10 +70,8 @@ abstract class CapacitorStorage {
             $row[$sumCol] = $sum[$sumCol];
           }
         }
-      } else {
-        if (array_key_exists($key, $values)) {
-          $row[$col] = $values[$key];
-        }
+      } elseif (array_key_exists($key, $values)) {
+        $row[$col] = $values[$key];
       }
     }
     return $row;
@@ -318,13 +317,39 @@ EOT;
     return $this->_discharge($this->getChannel($channel), $reset);
   }
 
+  protected function _convertValue2row(CapacitorChannel $channel, array $filter, array $cols): array {
+    $index = 0;
+    $fixed = [];
+    foreach ($filter as $key => $value) {
+      if ($key === $index) {
+        $index++;
+        if (is_array($value)) {
+          $value = $this->_convertValue2row($channel, $value, $cols);
+        }
+        $fixed[] = $value;
+      } else {
+        $col = "${key}__";
+        if (array_key_exists($col, $cols)) {
+          # colonne sérialisée
+          $fixed[$col] = $channel->serialize($value);
+        } else {
+          $fixed[$key] = $value;
+        }
+      }
+    }
+    return $fixed;
+  }
+
   protected function verifixFilter(CapacitorChannel $channel, &$filter): void {
     if ($filter !== null && !is_array($filter)) {
       $id = $filter;
       $channel->verifixId($id);
       $filter = ["id_" => $id];
     }
-    $filter = $this->serialize($channel, $filter);
+    $cols = $this->ColumnDefinitions($channel);
+    if ($filter !== null) {
+      $filter = $this->_convertValue2row($channel, $filter, $cols);
+    }
   }
 
   /** indiquer le nombre d'éléments du canal spécifié */