# File lib/active_record/connection_adapters/postgresql_adapter.rb, line 581 def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) unless pk # Extract the table from the insert sql. Yuck. table_ref = extract_table_ref_from_insert_sql(sql) pk = primary_key(table_ref) if table_ref end if pk select_value("#{sql} RETURNING #{quote_column_name(pk)}") else super end end