2-0-stable: Remove table quoting; only pull last_insert_id if there's a primary key.

Merging [8663]


git-svn-id: http://svn-commit.rubyonrails.org/rails/branches/2-0-stable@8860 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

Author: NZKoz

activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

@@ -386,8 +386,8 @@ def select_rows(sql, name = nil)
 
       # Executes an INSERT query and returns the new record's ID
       def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
-        table = sql.split(" ", 4)[2]
-        super || last_insert_id(table, sequence_name || default_sequence_name(table, pk))
+        table = sql.split(" ", 4)[2].gsub('"', '')
+        super || pk && last_insert_id(table, sequence_name || default_sequence_name(table, pk))
       end
 
       # Queries the database and returns the results in an Array or nil otherwise.