diff --git a/database.go b/database.go
index 9f6c8cc..a98a629 100644
--- a/database.go
+++ b/database.go
@@ -160,6 +160,16 @@ func (d *Database) NewBatch() ethdb.Batch {
 	return b
 }
 
+// NewBatchWithSize satisfies the ethdb.Batcher interface.
+// NewBatchWithSize creates a write-only database batch with pre-allocated buffer.
+func (d *Database) NewBatchWithSize(size int) ethdb.Batch {
+	b, err := NewBatch(d.blockService, size)
+	if err != nil {
+		panic(err)
+	}
+	return b
+}
+
 // NewIterator satisfies the ethdb.Iteratee interface
 // it creates a binary-alphabetical iterator over a subset
 // of database content with a particular key prefix, starting at a particular
@@ -195,18 +205,18 @@ func (d *Database) Ancients() (uint64, error) {
 	return 0, errNotSupported
 }
 
+// Tail satisfies the ethdb.AncientReader interface.
+// Tail returns the number of first stored item in the freezer.
+func (d *Database) Tail() (uint64, error) {
+	return 0, errNotSupported
+}
+
 // AncientSize satisfies the ethdb.AncientReader interface
 // AncientSize returns the ancient size of the specified category
 func (d *Database) AncientSize(kind string) (uint64, error) {
 	return 0, errNotSupported
 }
 
-// AppendAncient satisfies the ethdb.AncientWriter interface
-// AppendAncient injects all binary blobs belong to block at the end of the append-only immutable table files
-func (d *Database) AppendAncient(number uint64, hash, header, body, receipt, td []byte) error {
-	return errNotSupported
-}
-
 // AncientRange retrieves all the items in a range, starting from the index 'start'.
 // It will return
 //  - at most 'count' items,
@@ -221,9 +231,15 @@ func (d *Database) ReadAncients(fn func(ethdb.AncientReader) error) (err error)
 	return errNotSupported
 }
 
-// TruncateAncients satisfies the ethdb.AncientWriter interface
-// TruncateAncients discards all but the first n ancient data from the ancient store
-func (d *Database) TruncateAncients(n uint64) error {
+// TruncateHead satisfies the ethdb.AncientWriter interface.
+// TruncateHead discards all but the first n ancient data from the ancient store.
+func (d *Database) TruncateHead(n uint64) error {
+	return errNotSupported
+}
+
+// TruncateTail satisfies the ethdb.AncientWriter interface.
+// TruncateTail discards the first n ancient data from the ancient store.
+func (d *Database) TruncateTail(n uint64) error {
 	return errNotSupported
 }
 
@@ -232,3 +248,15 @@ func (d *Database) TruncateAncients(n uint64) error {
 func (d *Database) Sync() error {
 	return errNotSupported
 }
+
+// MigrateTable satisfies the ethdb.AncientWriter interface.
+// MigrateTable processes and migrates entries of a given table to a new format.
+func (d *Database) MigrateTable(string, func([]byte) ([]byte, error)) error {
+	return errNotSupported
+}
+
+// NewSnapshot satisfies the ethdb.Snapshotter interface.
+// NewSnapshot creates a database snapshot based on the current state.
+func (d *Database) NewSnapshot() (ethdb.Snapshot, error) {
+	return nil, errNotSupported
+}
diff --git a/postgres/database.go b/postgres/database.go
index d65b06c..a064961 100644
--- a/postgres/database.go
+++ b/postgres/database.go
@@ -248,6 +248,12 @@ func (d *Database) NewBatch() ethdb.Batch {
 	return NewBatch(d.db, nil)
 }
 
+// NewBatchWithSize satisfies the ethdb.Batcher interface.
+// NewBatchWithSize creates a write-only database batch with pre-allocated buffer.
+func (d *Database) NewBatchWithSize(size int) ethdb.Batch {
+	return NewBatch(d.db, nil)
+}
+
 // NewIterator satisfies the ethdb.Iteratee interface
 // it creates a binary-alphabetical iterator over a subset
 // of database content with a particular key prefix, starting at a particular
@@ -283,18 +289,18 @@ func (d *Database) Ancients() (uint64, error) {
 	return 0, errNotSupported
 }
 
+// Tail satisfies the ethdb.AncientReader interface.
+// Tail returns the number of first stored item in the freezer.
+func (d *Database) Tail() (uint64, error) {
+	return 0, errNotSupported
+}
+
 // AncientSize satisfies the ethdb.AncientReader interface
 // AncientSize returns the ancient size of the specified category
 func (d *Database) AncientSize(kind string) (uint64, error) {
 	return 0, errNotSupported
 }
 
-// AppendAncient satisfies the ethdb.AncientWriter interface
-// AppendAncient injects all binary blobs belong to block at the end of the append-only immutable table files
-func (d *Database) AppendAncient(number uint64, hash, header, body, receipt, td []byte) error {
-	return errNotSupported
-}
-
 // AncientRange retrieves all the items in a range, starting from the index 'start'.
 // It will return
 //  - at most 'count' items,
@@ -309,9 +315,15 @@ func (d *Database) ReadAncients(fn func(ethdb.AncientReader) error) (err error)
 	return errNotSupported
 }
 
-// TruncateAncients satisfies the ethdb.AncientWriter interface
-// TruncateAncients discards all but the first n ancient data from the ancient store
-func (d *Database) TruncateAncients(n uint64) error {
+// TruncateHead satisfies the ethdb.AncientWriter interface.
+// TruncateHead discards all but the first n ancient data from the ancient store.
+func (d *Database) TruncateHead(n uint64) error {
+	return errNotSupported
+}
+
+// TruncateTail satisfies the ethdb.AncientWriter interface.
+// TruncateTail discards the first n ancient data from the ancient store.
+func (d *Database) TruncateTail(n uint64) error {
 	return errNotSupported
 }
 
@@ -320,3 +332,15 @@ func (d *Database) TruncateAncients(n uint64) error {
 func (d *Database) Sync() error {
 	return errNotSupported
 }
+
+// MigrateTable satisfies the ethdb.AncientWriter interface.
+// MigrateTable processes and migrates entries of a given table to a new format.
+func (d *Database) MigrateTable(string, func([]byte) ([]byte, error)) error {
+	return errNotSupported
+}
+
+// NewSnapshot satisfies the ethdb.Snapshotter interface.
+// NewSnapshot creates a database snapshot based on the current state.
+func (d *Database) NewSnapshot() (ethdb.Snapshot, error) {
+	return nil, errNotSupported
+}