diff --git a/data/conf/samples/internal/cgrates.json b/data/conf/samples/dbinternal/cgrates.json
similarity index 50%
rename from data/conf/samples/internal/cgrates.json
rename to data/conf/samples/dbinternal/cgrates.json
index 31562e94e..1daf73266 100755
--- a/data/conf/samples/internal/cgrates.json
+++ b/data/conf/samples/dbinternal/cgrates.json
@@ -25,43 +25,6 @@
 },
 
 
-"cache":{
-	"destinations": {"limit": 10000, "ttl":"0s", "precache": true},
-	"reverse_destinations": {"limit": 10000, "ttl":"0s", "precache": true},
-	"rating_plans": {"limit": 10000, "ttl":"0s","precache": true},
-	"rating_profiles": {"limit": 10000, "ttl":"0s", "precache": true},
-	"lcr_rules": {"limit": 10000, "ttl":"0s", "precache": true},
-	"cdr_stats": {"limit": 10000, "ttl":"0s", "precache": true},
-	"actions": {"limit": 10000, "ttl":"0s", "precache": true},
-	"action_plans": {"limit": 10000, "ttl":"0s", "precache": true},
-	"account_action_plans": {"limit": 10000, "ttl":"0s", "precache": true},
-	"action_triggers": {"limit": 10000, "ttl":"0s", "precache": true},
-	"shared_groups": {"limit": 10000, "ttl":"0s", "precache": true},
-	"aliases": {"limit": 10000, "ttl":"0s", "precache": true},
-	"reverse_aliases": {"limit": 10000, "ttl":"0s", "precache": true},
-	"derived_chargers": {"limit": 10000, "ttl":"0s", "precache": true},
-	"resource_profiles": {"limit": 10000, "ttl":"0s", "precache": true},
-	"resources": {"limit": 10000, "ttl":"0s", "precache": true},
-	"statqueues": {"limit": 10000, "ttl":"0s", "precache": true},
-	"statqueue_profiles": {"limit": 10000, "ttl":"0s", "precache": true},
-	"thresholds": {"limit": 10000, "ttl":"0s", "precache": true},
-	"threshold_profiles": {"limit": 10000, "ttl":"0s", "precache": true},
-	"filters": {"limit": 10000, "ttl":"0s", "precache": true},
-	"supplier_profiles": {"limit": 10000, "ttl":"0s", "precache": true},
-	"attribute_profiles": {"limit": 10000, "ttl":"0s", "precache": true},
-	"resource_filter_indexes" :{"limit": 10000, "ttl":"0s"},
-	"resource_filter_revindexes" : {"limit": 10000, "ttl":"0s"},
-	"stat_filter_indexes" : {"limit": 10000, "ttl":"0s"},
-	"stat_filter_revindexes" : {"limit": 10000, "ttl":"0s"},
-	"threshold_filter_indexes" : {"limit": 10000, "ttl":"0s"},
-	"threshold_filter_revindexes" : {"limit": 10000, "ttl":"0s"},
-	"supplier_filter_indexes" : {"limit": 10000, "ttl":"0s"},
-	"supplier_filter_revindexes" :{"limit": 10000, "ttl":"0s"},
-	"attribute_filter_indexes" : {"limit": 10000, "ttl":"0s"},
-	"attribute_filter_revindexes" : {"limit": 10000, "ttl":"0s"},
-},
-
-
 "rals": {
 	"enabled": true,
 	"thresholds_conns": [
diff --git a/engine/storage_map_datadb.go b/engine/storage_map_datadb.go
index 5331af006..17e668d3e 100644
--- a/engine/storage_map_datadb.go
+++ b/engine/storage_map_datadb.go
@@ -1350,7 +1350,7 @@ func (ms *MapStorage) GetFilterReverseIndexesDrv(cacheID, itemIDPrefix string,
 			return nil, err
 		}
 		indexes = make(map[string]utils.StringMap)
-		for fldName, _ := range fldNameVal {
+		for fldName := range fldNameVal {
 			if _, has := indexes[fldName]; !has {
 				indexes[fldName] = make(utils.StringMap)
 			}