diff options
Diffstat (limited to 'activerecord/lib/active_record')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index ccbeba061d..20d3b4a1ef 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -301,15 +301,8 @@ module ActiveRecord # Adds a new index to the table. +column_name+ can be a single Symbol, or # an Array of Symbols. # - # The index will be named after the table and the first column name, - # unless you pass <tt>:name</tt> as an option. - # - # When creating an index on multiple columns, the first column is used as a name - # for the index. For example, when you specify an index on two columns - # [<tt>:first</tt>, <tt>:last</tt>], the DBMS creates an index for both columns as well as an - # index for the first column <tt>:first</tt>. Using just the first name for this index - # makes sense, because you will never have to create a singular index with this - # name. + # The index will be named after the table and the column name(s), unless + # you pass <tt>:name</tt> as an option. # # ===== Examples # |