diff --git a/src/main/kotlin/com/restapi/controllers/Entities.kt b/src/main/kotlin/com/restapi/controllers/Entities.kt
index aae87b4..a7bc87f 100644
--- a/src/main/kotlin/com/restapi/controllers/Entities.kt
+++ b/src/main/kotlin/com/restapi/controllers/Entities.kt
@@ -145,7 +145,17 @@ object Entities {
         val entity = ctx.pathParam("entity").lowercase()
         val noCreatedFilter = currentRoles().contains("ROLE_ADMIN") || sql.createdBy.isNullOrEmpty()
         val createdFilter = if (noCreatedFilter) "" else "and created_by = :cBy"
-        val searchJsonMap = sql.params.map { e -> Pair(e.key, e.value.getValue()) }.toMap()
+        val searchJsonMap = sql.params.map { e -> Pair(e.key, e.value.getValue()) }
+            .filter {
+                val second = it.second
+                if (second is String) {
+                    second.isNotEmpty()
+                } else {
+                    true
+                }
+            }
+            .toMap()
+        logger.warn("convert ${sql.params} to $searchJsonMap")
         val fl = database.find(DataModel::class.java)
             .setRawSql(
                 RawSqlBuilder.parse(