I really hate the error "permission denied for sequence xxxxx" when I grant on a table but forget to grant additionally on the related sequence to users. Can the permission of table and related sequences be merged?
I can imagine a situation where you want a user to be granted rights on a table, to use sequence with curval and nextval functions, but not setval, as it can provide some database problems.
oh, is it possible to separately grant nextval and setval on sequence currently?
For sequences, this privilege also allows the use of thecurrvalfunction.
UPDATE
For sequences, this privilege allows the use of thenextvalandsetvalfunctions.
What's more, in general, you cannot say which sequence is used for which table, if the sequence is not owned by the table.
Can we get it from the column definition such as a serial column?
Sure we can.
Which permissions of a table do you want to merge with which permissions of sequences?
At least granting insert on a table means to grant update on the sequence used by serial columns.
It could be done. Unfortunately it doesn't cover all cases, like some ORMs which can use one sequence for many different tables, but of course for serials it can be done.
