--- a/src/table_cache.rs	Tue Sep 19 20:06:43 2017 +0200
+++ b/src/table_cache.rs	Tue Sep 19 20:07:44 2017 +0200
@@ -14,11 +14,9 @@
 use std::path::Path;
 use std::rc::Rc;
 
-const DEFAULT_SUFFIX: &str = "ldb";
-
-pub fn table_name(name: &str, num: FileNum, suff: &str) -> String {
+pub fn table_file_name(name: &str, num: FileNum) -> String {
     assert!(num > 0);
-    format!("{}/{:06}.{}", name, num, suff)
+    format!("{}/{:06}.ldb", name, num)
 }
 
 fn filenum_to_key(num: FileNum) -> cache::CacheKey {
@@ -64,7 +62,7 @@
 
     /// Open a table on the file system and read it.
     fn open_table(&mut self, file_num: FileNum) -> Result<Table> {
-        let name = table_name(&self.dbname, file_num, DEFAULT_SUFFIX);
+        let name = table_file_name(&self.dbname, file_num);
         let path = Path::new(&name);
         let file_size = self.opts.env.size_of(&path)?;
         if file_size == 0 {
@@ -88,9 +86,9 @@
     use test_util::LdbIteratorIter;
 
     #[test]
-    fn test_table_name() {
-        assert_eq!("abc/000122.ldb", table_name("abc", 122, "ldb"));
-        assert_eq!("abc/1234567.ldb", table_name("abc", 1234567, "ldb"));
+    fn test_table_file_name() {
+        assert_eq!("abc/000122.ldb", table_file_name("abc", 122));
+        assert_eq!("abc/1234567.ldb", table_file_name("abc", 1234567));
     }
 
     fn make_key(a: u8, b: u8, c: u8) -> cache::CacheKey {
@@ -123,7 +121,7 @@
         let mut opt = options::for_test();
         opt.set_env(Box::new(MemEnv::new()));
         let dbname = "testdb1";
-        let tablename = table_name(dbname, 123, DEFAULT_SUFFIX);
+        let tablename = table_file_name(dbname, 123);
         let tblpath = Path::new(&tablename);
 
         write_table_to(opt.clone(), tblpath);

--- a/src/version.rs	Tue Sep 19 20:06:43 2017 +0200
+++ b/src/version.rs	Tue Sep 19 20:07:44 2017 +0200
@@ -513,7 +513,7 @@
     use mem_env::MemEnv;
     use options::{self, Options};
     use table_builder::TableBuilder;
-    use table_cache::table_name;
+    use table_cache::table_file_name;
     use types::{share, FileMetaData, FileNum};
 
     use std::path::Path;
@@ -540,7 +540,7 @@
                        startseq: u64,
                        num: FileNum)
                        -> FileMetaHandle {
-        let dst = me.open_writable_file(Path::new(&table_name("db", num, "ldb"))).unwrap();
+        let dst = me.open_writable_file(Path::new(&table_file_name("db", num))).unwrap();
         let mut seq = startseq;
         let keys: Vec<Vec<u8>> = contents.iter()
             .map(|&(k, _)| {
@@ -637,7 +637,7 @@
     use merging_iter::MergingIter;
     use options;
     use table_builder::TableBuilder;
-    use table_cache::{table_name, TableCache};
+    use table_cache::{table_file_name, TableCache};
     use test_util::{test_iterator_properties, LdbIteratorIter};
     use types::share;