Now SORT returns an empty bulk reply if the key does not exist

[redis.git] / TODO

diff --git a/TODO b/TODO
index 22b278a9e93b508ff1b1ccb63b1fbe0bf52f32de..b65bd486c6cf2eeb79d88f5d204339e404ff6715 100644 (file)
--- a/TODO
+++ b/TODO
@@ -5,15 +5,14 @@ VERSION 1.2 TODO (Zsets, Integer encoding, Append only journal)
 
 Most of the features already implemented for this release. The following is a list of the missing things in order to release the first beta tar.gz:
 
-* Man pages for SRANDMEMBER, missing Z-commands, ...
-* Write docs for the "STORE" operaiton of SORT. Link to the article about SORT by written by defunkt.
-* ZRANGEBYSCORE LIMIT option and test.
+* Continue adding tests accordingly to gcov output.
 
 VERSION 1.4 TODO (Hash type)
 ============================
 
+* Blocking LPOP (BLPOP).
 * Hashes (HSET, HGET, HEXISTS, HLEN, ...).
-* An utility able to export an .rdb file into a text-only JSON dump, we can't live anymore without such a tool. Probably an extension to redis-cli.
+* List ops like L/RPUSH L/RPOP should return the new list length.
 
 VERSION 1.6 TODO (Virtual memory)
 =================================
@@ -42,16 +41,45 @@ VERSION 2.2 TODO (Optimizations and latency)
 
 * JSON command able to access data serialized in JSON format. For instance if I've a key foobar with a json object I can alter the "name" file using somthing like: "JSON SET foobar name Kevin". We should have GET and INCRBY as well.
 
+OTHER IMPORTANT THINGS THAT WILL BE ADDED BUT I'M NOT SURE WHEN
+===============================================================
+
+BIG ONES:
+
+* Specially encoded memory-saving integer sets.
+* A command to export a JSON dump (there should be mostly working patch needing major reworking).
+
+SMALL ONES:
+
+* Give errors when incrementing a key that does not look like an integer, when providing as a sorted set score something can't be parsed as a double, and so forth.
+* MSADD (n keys) (n values). See this thread in the Redis google group: http://groups.google.com/group/redis-db/browse_thread/thread/e766d84eb375cd41
+
 SHORT/LONG TERM RANDOM TODO ITEMS
 =================================
 
- * FORK command (fork()s executing the commands received by the current
-   client in the new process). Hint: large SORTs can use more cores,
-   copy-on-write will avoid memory problems.
- * SORT: Don't copy the list into a vector when BY argument is constant.
- * Write the hash table size of every db in the dump, so that Redis can resize the hash table just one time when loading a big DB.
- * LOCK / TRYLOCK / UNLOCK as described many times in the google group
- * Replication automated tests
- * BYTEDARRAY type
- * zmalloc() should avoid to add a private header for archs where there is some other kind of libc-specific way to get the size of a malloced block.
- * Read-only mode.
+Most of this can be seen just as proposals, the fact they are in this list
+it's not a guarantee they'll ever get implemented ;)
+
+* Move dict.c from hash table to skip list, in order to avoid the blocking resize operation needed for the hash table.
+* FORK command (fork()s executing the commands received by the current
+  client in the new process). Hint: large SORTs can use more cores,
+  copy-on-write will avoid memory problems.
+* DUP command? DUP srckey dstkey, creates an exact clone of srckey value in dstkey.
+* SORT: Don't copy the list into a vector when BY argument is constant.
+* Write the hash table size of every db in the dump, so that Redis can resize the hash table just one time when loading a big DB.
+* LOCK / TRYLOCK / UNLOCK as described many times in the google group
+* Replication automated tests
+* Byte Array type (BA prefixed commands): BASETBIT BAGETBIT BASETU8 U16 U32 U64 S8 S16 S32 S64, ability to atomically INCRBY all the base types. BARANGE to get a range of bytes as a bulk value, BASETRANGE to set a range of bytes.
+* zmalloc() should avoid to add a private header for archs where there is some other kind of libc-specific way to get the size of a malloced block. Already done for Mac OS X.
+* Read-only mode.
+* Pattern-matching replication.
+* Don't save empty lists / sets / zsets on disk with snapshotting.
+* Remove keys when a list / set / zset reaches length of 0.
+* Add an option to relax the delete-expiring-keys-on-write semantic *denying* replication and AOF when this is on? Can be handy sometimes, when using Redis for non persistent state, but can create problems. For instance should rename and move also "move" the timeouts? How does this affect other commands?
+
+DOCUMENTATION WISHLIST
+======================
+
+* Page explaining tips to reduce memory usage.
+* A Sorted sets HOWTO
+