When encountering the error 34000: Invalid Cursor Name in Postgres, the immediate action to take is to check the scope and lifecycle of the cursor you are working with. Cursors in PostgreSQL have a specific scope and are bound to the transaction that created them. If you're trying to reference a cursor outside its transaction or if it was not properly declared, you will encounter this error.
BEGIN;
-- Your DECLARE cursor statement here
-- Example: DECLARE mycursor CURSOR FOR SELECT * FROM my_table;
-- Attempt to fetch from the cursor to test its validity
FETCH ALL IN mycursor;
-- Remember to CLOSE the cursor if you're done
CLOSE mycursor;
COMMIT;
pg_cursors to see if it’s listed there. This needs to be done in the same session where the cursor was supposed to be declared:SELECT * FROM pg_cursors;
By following these steps, you should be able to identify and correct the issue with the cursor that is causing the 34000: Invalid Cursor Name error in PostgreSQL.
Let Dr. Droid create custom investigation plans for your infrastructure.
Start Free POC (15-min setup) →
