Permalink
Browse files

Remove references to old journal table approach

  • Loading branch information...
1 parent 4ba1a3c commit 9d97475692095f4021e3a829640e0d3f8fe099bb @grobie committed Mar 4, 2012
Showing with 6 additions and 6 deletions.
  1. +6 −6 README.md
View
12 README.md
@@ -31,13 +31,13 @@ ActiveRecord migrations.
## The idea
The basic idea is to perform the migration online while the system is live,
-without locking the table. Similar to OAK (online alter table) [2] and the
-facebook tool [0], we use a copy table, triggers and a journal table.
+without locking the table. In contrast to OAK (online alter table) [0] and the
+facebook tool [1], we only use a copy table and triggers.
The Large Hadron is a test driven Ruby solution which can easily be dropped
into an ActiveRecord migration. It presumes a single auto incremented
numerical primary key called id as per the Rails convention. Unlike the
-twitter solution [1], it does not require the presence of an indexed
+twitter solution [2], it does not require the presence of an indexed
`updated_at` column.
## Usage
@@ -96,7 +96,7 @@ The license is included as LICENSE in this directory.
## Footnotes
-[0]: http://www.facebook.com/note.php?note\_id=430801045932 "Facebook"
-[1]: https://github.com/freels/table\_migrator "Twitter"
-[2]: http://openarkkit.googlecode.com "OAK online alter table"
+[0]: http://openarkkit.googlecode.com "OAK online alter table"
+[1]: http://www.facebook.com/note.php?note\_id=430801045932 "Facebook"
+[2]: https://github.com/freels/table\_migrator "Twitter"

0 comments on commit 9d97475

Please sign in to comment.