diff options
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb | 2 | ||||
| -rw-r--r-- | activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb | 5 |
2 files changed, 6 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index cd565787b3..b26f16da3a 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -1108,7 +1108,7 @@ module ActiveRecord # Construct a clean list of column names from the ORDER BY clause, removing # any ASC/DESC modifiers - order_columns = orders.collect { |s| s.gsub(/\s+(ASC|DESC)\s*/i, '') } + order_columns = orders.collect { |s| s.gsub(/\s+(ASC|DESC)\s*(NULLS\s+(FIRST|LAST)\s*)?/i, '') } order_columns.delete_if { |c| c.blank? } order_columns = order_columns.zip((0...order_columns.size).to_a).map { |s,i| "#{s} AS alias_#{i}" } diff --git a/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb b/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb index d57794daf8..3eb73d3093 100644 --- a/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb +++ b/activerecord/test/cases/adapters/postgresql/postgresql_adapter_test.rb @@ -179,6 +179,11 @@ module ActiveRecord assert_equal Arel.sql('$2'), bind end + def test_distinct_with_nulls + assert_equal "DISTINCT posts.title, posts.updater_id AS alias_0", @connection.distinct("posts.title", ["posts.updater_id desc nulls first"]) + assert_equal "DISTINCT posts.title, posts.updater_id AS alias_0", @connection.distinct("posts.title", ["posts.updater_id desc nulls last"]) + end + private def insert(ctx, data) binds = data.map { |name, value| |