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| 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 /railties/guides/source | |
| 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 'railties/guides/source')
| -rw-r--r-- | railties/guides/source/configuring.textile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/railties/guides/source/configuring.textile b/railties/guides/source/configuring.textile index d91011c370..24bf9d863b 100644 --- a/railties/guides/source/configuring.textile +++ b/railties/guides/source/configuring.textile @@ -268,6 +268,8 @@ h4. Configuring Active Record * +config.active_record.identity_map+ controls whether the identity map is enabled, and is false by default. +* +config.active_record.auto_explain_threshold_in_seconds+ configures the threshold for automatic EXPLAINs (+nil+ disables this feature). Queries taking more than those many seconds get their query plan logged. Default is 0.5 in development mode. + The MySQL adapter adds one additional configuration option: * +ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans+ controls whether Active Record will consider all +tinyint(1)+ columns in a MySQL database to be booleans and is true by default. |