diff --git a/source/libs/tdb/src/db/tdb_mpool.c b/source/libs/tdb/src/db/tdb_mpool.c
index c387b6adcc..0d9ddd9d46 100644
--- a/source/libs/tdb/src/db/tdb_mpool.c
+++ b/source/libs/tdb/src/db/tdb_mpool.c
@@ -15,7 +15,7 @@
 
 #include "tdb_mpool.h"
 
-int tdbOpenMP(TDB_MPOOL **mpp, uint64_t cachesize, pgsize_t pgsize) {
+int tdbMPoolOpen(TDB_MPOOL **mpp, uint64_t cachesize, pgsize_t pgsize) {
   TDB_MPOOL *mp;
   size_t     tsize;
   MP_PAGE *  pagep;
@@ -65,18 +65,7 @@ int tdbOpenMP(TDB_MPOOL **mpp, uint64_t cachesize, pgsize_t pgsize) {
   return 0;
 }
 
-int tdbCloseMP(TDB_MPOOL *mp) {
-  // TODO
-  return 0;
-}
-
-int tdbMPFetchPage(TDB_MPOOL *mp, pgid_t mpgid, void *p) {
-  // Search the hash
-  // TODO
-  return 0;
-}
-
-int tdbMpUnfetchPage(TDB_MPOOL *mp, pgid_t mpgid, void *p) {
+int tdbMPoolClose(TDB_MPOOL *mp) {
   // TODO
   return 0;
 }
\ No newline at end of file
diff --git a/source/libs/tdb/src/inc/tdb_inc.h b/source/libs/tdb/src/inc/tdb_inc.h
index 3e16036722..17dd5254d6 100644
--- a/source/libs/tdb/src/inc/tdb_inc.h
+++ b/source/libs/tdb/src/inc/tdb_inc.h
@@ -27,6 +27,15 @@ extern "C" {
 typedef int32_t pgno_t;
 #define TDB_IVLD_PGID ((pgno_t)-1)
 
+// fileid
+#define TDB_FILE_UID_LEN 20
+
+// pgid_t
+typedef struct {
+  uint8_t fuid[TDB_FILE_UID_LEN];
+  pgno_t  pgid;
+} pgid_t;
+
 // framd_id_t
 typedef int32_t frame_id_t;
 
@@ -37,9 +46,6 @@ typedef int32_t pgsize_t;
 #define TDB_DEFAULT_PGSIZE 4096
 #define TDB_IS_PGSIZE_VLD(s) (((s) >= TDB_MIN_PGSIZE) && ((s) <= TDB_MAX_PGSIZE))
 
-// fileid
-#define TDB_FILE_UID_LEN 20
-
 // tdb_log
 #define tdbError(var)
 
diff --git a/source/libs/tdb/src/inc/tdb_mpool.h b/source/libs/tdb/src/inc/tdb_mpool.h
index 2e9e9be73e..73596d91dd 100644
--- a/source/libs/tdb/src/inc/tdb_mpool.h
+++ b/source/libs/tdb/src/inc/tdb_mpool.h
@@ -26,17 +26,12 @@ extern "C" {
 typedef struct TDB_MPOOL  TDB_MPOOL;
 typedef struct TDB_MPFILE TDB_MPFILE;
 
-typedef struct {
-  uint8_t fuid[TDB_FILE_UID_LEN];
-  pgno_t  pgid;
-} pgid_t;
-
 typedef struct MP_PAGE {
   // SRWLatch  rwLatch;
-  pgid_t mpgid;
-  uint8_t   dirty;
-  uint8_t   fileid[TDB_FILE_UID_LEN];
-  int32_t   pinRef;
+  pgid_t  mpgid;
+  uint8_t dirty;
+  uint8_t fileid[TDB_FILE_UID_LEN];
+  int32_t pinRef;
   TD_DLIST_NODE(MP_PAGE);
   char *page[];
 } MP_PAGE;
@@ -67,10 +62,8 @@ struct TDB_MPFILE {
 
 /*=================================================== Exposed apis ==================================================*/
 // TDB_MPOOL
-int tdbOpenMP(TDB_MPOOL **mpp, uint64_t cachesize, pgsize_t pgsize);
-int tdbCloseMP(TDB_MPOOL *mp);
-int tdbMPFetchPage(TDB_MPOOL *mp, pgid_t mpgid, void *p);
-int tdbMpUnfetchPage(TDB_MPOOL *mp, pgid_t mpgid, void *p);
+int tdbMPoolOpen(TDB_MPOOL **mpp, uint64_t cachesize, pgsize_t pgsize);
+int tdbMPoolClose(TDB_MPOOL *mp);
 
 // TDB_MPFILE
 int tdbMPFOpen(TDB_MPFILE **mpfp, const char *fname, TDB_MPOOL *mp);