X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/02fdd5ab4c8691156c150bc3948cbebbe8b208ad..49128f0b9da725de992e427fa341a837bcc2991b:/doc/KeysCommand.html
diff --git a/doc/KeysCommand.html b/doc/KeysCommand.html
index 98718fc0..f1a6e070 100644
--- a/doc/KeysCommand.html
+++ b/doc/KeysCommand.html
@@ -16,7 +16,7 @@
KeysCommand
@@ -26,13 +26,13 @@
-
+ #sidebar
GenericCommandsSidebar
Time complexity: O(n) (with n being the number of keys in the DB, and assuming keys and pattern of limited length)Returns all the keys matching the glob-style pattern asspace separated strings. For example if you have in thedatabase the keys "foo" and "foobar" the command "KEYS foo*"will return "foo foobar".
-
Note that while the time complexity for this operation is O(n)the constant times are pretty low. For example Redis runningon an entry level laptop can scan a 1 million keys databasein 40 milliseconds. Still it's better to consider this one ofthe slow commands that may ruin the DB performance if not usedwith care.
+
Note that while the time complexity for this operation is O(n)the constant times are pretty low. For example Redis runningon an entry level laptop can scan a 1 million keys databasein 40 milliseconds. Still it's better to consider this one of
+the slow commands that may ruin the DB performance if not usedwith care*.
+In other words this command is intended only for debugging and *special* operations like creating a script to change the DB schema. Don't use it in your normal code. Use Redis Sets in order to group together a subset of objects.
Glob style patterns examples:
-- h?llo will match hello hallo hhllo
- hllo will match hllo heeeello
-
* haello will match hello and hallo, but not hillo
Use \ to escape special chars if you want to match them verbatim.Bulk reply, specifically a string in the form of space separated list of keys. Note that most client libraries will return an Array of keys and not a single string with space separated keys (that is, split by " " is performed in the client library usually).
-* RANDOMKEY to get the name of a randomly selected key in O(1).
+* h?llo will match hello hallo hhllo* h*llo will match hllo heeeello* h[ae]llo will match hello and hallo, but not hillo
Use \ to escape special chars if you want to match them verbatim.Bulk reply, specifically a string in the form of space separated list of keys. Note that most client libraries will return an Array of keys and not a single string with space separated keys (that is, split by " " is performed in the client library usually).