diff --git a/cassandra/cassandra.go b/cassandra/cassandra.go
index e7f28360..4d006eee 100644
--- a/cassandra/cassandra.go
+++ b/cassandra/cassandra.go
@@ -4,7 +4,6 @@ import (
 	"errors"
 	"fmt"
 	"log"
-	"regexp"
 	"strings"
 	"time"
 	"unicode"
@@ -24,11 +23,6 @@ type Storage struct {
 	ttl      int
 }
 
-var (
-	// identifierPattern matches valid Cassandra identifiers
-	identifierPattern = regexp.MustCompile(`^[a-zA-Z0-9_]+$`)
-)
-
 // validateIdentifier checks if an identifier is valid
 func validateIdentifier(name, identifierType string) (string, error) {
 	if name == "" {