core, eth: drop database block splitting upgrader

1 files changed, 0 insertions, 59 deletions

diff --git a/eth/db_upgrade.go b/eth/db_upgrade.go
index 7038ebbbd..2a61af364 100644
--- a/eth/db_upgrade.go
+++ b/eth/db_upgrade.go
@@ -252,65 +252,6 @@ func upgradeSequentialBlockData(db ethdb.Database, hash []byte) error {
 	return nil
 }
 
-// upgradeChainDatabase ensures that the chain database stores block split into
-// separate header and body entries.
-func upgradeChainDatabase(db ethdb.Database) error {
-	// Short circuit if the head block is stored already as separate header and body
-	data, err := db.Get([]byte("LastBlock"))
-	if err != nil {
-		return nil
-	}
-	head := common.BytesToHash(data)
-
-	if block := core.GetBlockByHashOld(db, head); block == nil {
-		return nil
-	}
-	// At least some of the database is still the old format, upgrade (skip the head block!)
-	log.Info(fmt.Sprint("Old database detected, upgrading..."))
-
-	if db, ok := db.(*ethdb.LDBDatabase); ok {
-		blockPrefix := []byte("block-hash-")
-		for it := db.NewIterator(); it.Next(); {
-			// Skip anything other than a combined block
-			if !bytes.HasPrefix(it.Key(), blockPrefix) {
-				continue
-			}
-			// Skip the head block (merge last to signal upgrade completion)
-			if bytes.HasSuffix(it.Key(), head.Bytes()) {
-				continue
-			}
-			// Load the block, split and serialize (order!)
-			block := core.GetBlockByHashOld(db, common.BytesToHash(bytes.TrimPrefix(it.Key(), blockPrefix)))
-
-			if err := core.WriteTd(db, block.Hash(), block.NumberU64(), block.DeprecatedTd()); err != nil {
-				return err
-			}
-			if err := core.WriteBody(db, block.Hash(), block.NumberU64(), block.Body()); err != nil {
-				return err
-			}
-			if err := core.WriteHeader(db, block.Header()); err != nil {
-				return err
-			}
-			if err := db.Delete(it.Key()); err != nil {
-				return err
-			}
-		}
-		// Lastly, upgrade the head block, disabling the upgrade mechanism
-		current := core.GetBlockByHashOld(db, head)
-
-		if err := core.WriteTd(db, current.Hash(), current.NumberU64(), current.DeprecatedTd()); err != nil {
-			return err
-		}
-		if err := core.WriteBody(db, current.Hash(), current.NumberU64(), current.Body()); err != nil {
-			return err
-		}
-		if err := core.WriteHeader(db, current.Header()); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
 func addMipmapBloomBins(db ethdb.Database) (err error) {
 	const mipmapVersion uint = 2