diff options
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 255da7d183..b1f2f93462 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -122,6 +122,14 @@ module ActiveRecord # Extracts the value from a PostgreSQL column default definition. def self.extract_value_from_default(default) case default + # This is a performance optimization for Ruby 1.9.2 in development. + # If the value is nil, we return nil straight away without checking + # the regular expressions. If we check each regular expression, + # Regexp#=== will call NilClass#to_str, which will trigger + # method_missing (defined by whiny nil in ActiveSupport) which + # makes this method very very slow. + when NilClass + nil # Numeric types when /\A\(?(-?\d+(\.\d*)?\)?)\z/ $1 |