core/rawdb: indextx adjust offset of pruned block

Signed-off-by: Delweng <delweng@gmail.com>

core/rawdb/chain_iterator.go

@@ -179,6 +179,10 @@ func iterateTransactions(db ethdb.Database, from uint64, to uint64, reverse bool
 // There is a passed channel, the whole procedure will be interrupted if any
 // signal received.
 func indexTransactions(db ethdb.Database, from uint64, to uint64, interrupt chan struct{}, hook func(uint64) bool) {
+	// adjust range boundary for pruned block
+	if offset := db.AncientOffSet(); offset > from {
+		from = offset
+	}
 	// short circuit for invalid range
 	if from >= to {
 		return
@@ -271,6 +275,10 @@ func indexTransactionsForTesting(db ethdb.Database, from uint64, to uint64, inte
 // There is a passed channel, the whole procedure will be interrupted if any
 // signal received.
 func unindexTransactions(db ethdb.Database, from uint64, to uint64, interrupt chan struct{}, hook func(uint64) bool) {
+	// adjust range boundary for pruned block
+	if offset := db.AncientOffSet(); offset > from {
+		from = offset
+	}
 	// short circuit for invalid range
 	if from >= to {
 		return