Raivo Rebane <raivore55@xxxxxxxxx> writes: > Thank for answer, but I was also readed this manual and found there : > 35.3.2. Importing a Large Object You need to read the start of that section, which says All large object manipulation using these functions <emphasis>must</emphasis> take place within an SQL transaction block, As Christoph said, you're responsible for supplying a BEGIN and COMMIT around the call. regards, tom lane