sql - Fixing holes/gaps in numbers generated by Postgres sequence

Question

I have a postgres database that uses sequences extensively to generate primary keys of tables. After a lot of usage of this database i.e. Adding/Update/Delete operation the columns that uses sequences for primary keys now have a lot holes/gaps in them and the sequence value itself is very high.

My question is: Are there any ways in which we can fix these gaps in Primary Keys? which should inturn bring down the max value of the number in that columns and then reset the sequence?

Note: A lot of these columns are also referenced by other columns as ForeignKeys.

Answer 1

If you feel the need to fill gaps in auto-generated Posgresql sequence numbers, I have the feeling you need another field in your table, like some kind of "number" you increment programmatically, either in your code, or in a trigger.