Bug Fix of checksum for `create database`

Signed-off-by: NXin Zhang <xzhang@pivotal.io>

src/backend/commands/dbcommands.c

@@ -318,7 +318,7 @@ static void copy_buffer_pool_files(
 			recptr = XLogInsert(RM_HEAP_ID, XLOG_HEAP_NEWPAGE, rdata);
 		
 			PageSetLSN(buffer, recptr);
-		
+			PageSetChecksumInplace(buffer, blkno);
 			END_CRIT_SECTION();
 
 		}