Unexpected error:	ERROR: deadlock detected LINE 2: FROM items, users ^ DETAIL: Process 2591306 waits for AccessShareLock on relation 268415400 of database 243509389; blocked by process 2591303. Process 2591303 waits for AccessExclusiveLock on relation 268415298 of database 243509389; blocked by process 2591306. HINT: See server log for query details. Query: SELECT * FROM items, users WHERE item_id=user_id AND user_username='anonymous'

Unexpected error:

ERROR: deadlock detected LINE 2: FROM items, users ^ DETAIL: Process 2591306 waits for AccessShareLock on relation 268415400 of database 243509389; blocked by process 2591303. Process 2591303 waits for AccessExclusiveLock on relation 268415298 of database 243509389; blocked by process 2591306. HINT: See server log for query details. Query: SELECT * FROM items, users WHERE item_id=user_id AND user_username='anonymous'