diff --git a/include/old/shared_query_cache.h b/include/old/shared_query_cache.h
deleted file mode 100644
index 0c20b03fe..000000000
--- a/include/old/shared_query_cache.h
+++ /dev/null
@@ -1,90 +0,0 @@
-#ifndef __CLASS_SHARED_QUERY_CACHE_H
-#define __CLASS_SHARED_QUERY_CACHE_H
-#include "proxysql.h"
-#include "cpp.h"
-
-#define EXPIRE_DROPIT	0
-#define SHARED_QUERY_CACHE_HASH_TABLES	16
-#define HASH_EXPIRE_MAX	3600*24*365*10
-#define DEFAULT_purge_loop_time 400000
-#define DEFAULT_purge_total_time 10000000
-#define DEFAULT_purge_threshold_pct_min	50
-#define DEFAULT_purge_threshold_pct_max	90
-
-
-#define DEFAULT_SQC_size  64*1024*1024
-
-/*
-typedef struct __fdb_hash_t fdb_hash_t;
-typedef struct __fdb_hash_entry fdb_hash_entry;
-*/
-/*
-struct __fdb_hash_t {
-		pthread_rwlock_t lock;
-		GHashTable *hash;
-		GPtrArray *ptrArray;
-		uint64_t dataSize;
-		uint64_t purgeChunkSize;
-		uint64_t purgeIdx;
-};
-
-
-
-
-struct __fdb_hash_entry {
-	unsigned char *key;
-	unsigned char *value;
-	fdb_hash_t *hash;
-	struct __fdb_hash_entry *self;
-	uint32_t klen;
-	uint32_t length;
-	time_t expire;
-	time_t access;
-	uint32_t ref_count;
-};
-*/
-
-
-
-class Shared_Query_Cache {
-
-
-	public:
-	void * purgeHash_thread(void *);
-	//GPtrArray *LQCs;	// array of Local Query Cache . These are used to update QCnow from the Shared_Query_Cache
-	int size;
-	int shutdown;
-	time_t QCnow;
-	pthread_t purge_thread_id;
-	fdb_hash_t fdb_hashes[SHARED_QUERY_CACHE_HASH_TABLES];
-	unsigned int purge_loop_time;
-	unsigned int purge_total_time;
-	unsigned int purge_threshold_pct_min;
-	unsigned int purge_threshold_pct_max;
-//	unsigned int hash_expire_default;
-	uint64_t max_memory_size;
-	uint64_t cntDel;
-	uint64_t cntGet;
-	uint64_t cntGetOK;
-	uint64_t cntSet;
-	uint64_t cntSetERR;
-	uint64_t cntPurge;
-	uint64_t size_keys;
-	uint64_t size_values;
-	uint64_t size_metas;
-	uint64_t dataIN;
-	uint64_t dataOUT;
-//	Shared_Query_Cache();
-	Shared_Query_Cache(uint64_t _max_memory_size=DEFAULT_SQC_size);
-	~Shared_Query_Cache();
-	bool set(unsigned char *, uint32_t, unsigned char *, uint32_t, time_t);
-	unsigned char * get(const unsigned char *);
-	uint64_t flush();	
-	uint64_t current_free_memory();
-	unsigned int current_used_memory_pct();
-//	void register_LQC(Local_Query_Cache *);
-//	void unregister_LQC(Local_Query_Cache *);
-};
-
-#endif /* __CLASS_SHARED_QUERY_CACHE_H */
-