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Author SHA1 Message Date
Xavier Noria
e7b7b44123 implements AR::Relation#explain
This is a first implementation, EXPLAIN is highly
dependent on the database and I have made some
compromises.

On one hand, the method allows you to run the most
common EXPLAIN and that's it. If you want EXPLAIN
ANALYZE in PostgreSQL you need to do it by hand.

On the other hand, I've tried to construct a string
as close as possible to the ones built by the
respective shells. The rationale is that IMO the
user should feel at home with the output and
recognize it at first sight. Per database.

I don't know whether this implementation is going
to work well. Let's see whether people like it.
2011-11-05 18:30:19 -07:00
Jon Leighton
f575e21025 Merge pull request #3525 from kennyj/fix_3440-1
Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440)
2011-11-05 10:29:18 -07:00
kennyj
fb0bf3c984 Fixed an issue id false option is ignored on mysql/mysql2 (fix #3440) 2011-11-06 02:15:47 +09:00
Jon Leighton
562583c766 Add ActiveRecord::Relation#uniq for toggling DISTINCT in the SQL query 2011-11-05 16:22:18 +00:00
Vlad Jebelev
69dcd45aea AR changes to support creating ordered (asc, desc) indexes 2011-11-04 15:45:24 -05:00
Jon Leighton
281272ad36 Convert CHANGELOGs to Markdown format.
Reasons:

 * Markdown reads well as plain text, but can also be formatted.
 * It will make it easier for people to read on the web as Github
   formats the Markdown nicely.
 * It will encourage a level of consistency when people are writing
   CHANGELOG entries.

The script used to perform the conversion is at
https://gist.github.com/1339263
2011-11-04 12:55:17 +00:00