"Philip Ives" <phil(at)ivesdigital(dot)com> writes:
> pg_get_serial_sequence doesn't return the correct sequence name and returns
> a null.
Can you provide a reproducible test case for this?
The example you give looks suspiciously like the column was not created
using the SERIAL notation, but through some hand approximation to that.
pg_get_serial_sequence() only works for actual SERIAL columns, because
it looks for a pg_depend entry that's made by SERIAL but not by just
creating a column that happens to involve a nextval() default.
As of 8.2 there's an ALTER SEQUENCE OWNED BY command that you can use
to reproduce this side-effect of SERIAL, but in prior releases there's
no way, unless you're brave enough to insert the pg_depend entry by
regards, tom lane
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