Fix panic in toSQLConditionClause when no values are provided

netquery/query.go

@@ -341,25 +341,28 @@ func (match Matcher) toSQLConditionClause(ctx context.Context, suffix string, co
 			params[uniqKey] = encodedValue
 		}
 
-		// NOTE(ppacher): for now we assume that the type of each element of values
-		// is the same. We also can be sure that there is always at least one value.
-		//
-		// TODO(ppacher): if we start supporting values of different types here
-		// we need to revisit the whole behavior as we might need to do more boolean
-		// expression nesting to support that.
-		kind := orm.NormalizeKind(reflect.TypeOf(values[0]).Kind())
-		isNumber := slices.Contains([]reflect.Kind{
-			reflect.Uint,
-			reflect.Int,
-			reflect.Float64,
-		}, kind)
-
-		// if this is a time column that is stored in "text" format and the provided
-		// value is a number type, we need to wrap the property in a strftime() method
-		// call.
 		nameStmt := colDef.Name
-		if colDef.IsTime && colDef.Type == sqlite.TypeText && isNumber {
+
-			nameStmt = fmt.Sprintf("strftime('%%s', %s)+0", nameStmt)
+		if len(values) > 0 {
+			// NOTE(ppacher): for now we assume that the type of each element of values
+			// is the same. We also can be sure that there is always at least one value.
+			//
+			// TODO(ppacher): if we start supporting values of different types here
+			// we need to revisit the whole behavior as we might need to do more boolean
+			// expression nesting to support that.
+			kind := orm.NormalizeKind(reflect.TypeOf(values[0]).Kind())
+			isNumber := slices.Contains([]reflect.Kind{
+				reflect.Uint,
+				reflect.Int,
+				reflect.Float64,
+			}, kind)
+
+			// if this is a time column that is stored in "text" format and the provided
+			// value is a number type, we need to wrap the property in a strftime() method
+			// call.
+			if colDef.IsTime && colDef.Type == sqlite.TypeText && isNumber {
+				nameStmt = fmt.Sprintf("strftime('%%s', %s)+0", nameStmt)
+			}
 		}
 
 		if len(placeholder) == 1 && !list {