There's 11 functions which are marked immutable, but are marked as parallel unsafe.
postgres=# select proname from pg_proc where provolatile = 'i' and proparallel = 'u'; proname ----------------------------- _pg_expandarray _pg_keysequal _pg_truetypid _pg_truetypmod _pg_char_max_length _pg_char_octet_length _pg_numeric_precision _pg_numeric_precision_radix _pg_numeric_scale _pg_datetime_precision _pg_interval_type (11 rows) I'm finding hard to imagine a reason why these might be unsafe, but failed. I do notice they're all only used in information_schema. Could it just perhaps be that these just missed the verification process the other functions went through to determine their parallel safety? -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers