diff options
| author | Xavier Noria <fxn@hashref.com> | 2011-12-02 04:32:18 -0800 |
|---|---|---|
| committer | Xavier Noria <fxn@hashref.com> | 2011-12-02 04:35:43 -0800 |
| commit | 0306f82e0c3cda3aad1b45eb0c3a359c254b62cc (patch) | |
| tree | 08ddebf4733e3b3c2b24d4ee1db8313c4a447f71 /activerecord/CHANGELOG.md | |
| parent | 4d20de8a50d889a09e6f5642984775fe796ca943 (diff) | |
| download | rails-0306f82e0c3cda3aad1b45eb0c3a359c254b62cc.tar.gz rails-0306f82e0c3cda3aad1b45eb0c3a359c254b62cc.tar.bz2 rails-0306f82e0c3cda3aad1b45eb0c3a359c254b62cc.zip | |
implements automatic EXPLAIN logging for slow queries
Diffstat (limited to 'activerecord/CHANGELOG.md')
| -rw-r--r-- | activerecord/CHANGELOG.md | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index f798b03ea1..9ffd085925 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,5 +1,16 @@ ## Rails 3.2.0 (unreleased) ## +* Implements automatic EXPLAIN logging for slow queries. + + A new configuration parameter `config.active_record.auto_explain_threshold_in_seconds` + determines what's to be considered a slow query. Setting that to `nil` disables + this feature. Defaults are 0.5 in development mode, and `nil` in test and production + modes. + + As of this writing there's support for SQLite, MySQL (mysql2 adapter), and + PostgreSQL. + + *fxn* * Implemented ActiveRecord::Relation#pluck method |