Hi,

I'm looking to find all records in pg_depend that show that some columns 
in my db depend on the 'timestamp' type.  So I do this:

select * from pg_depend where refclassid=1247 and refobjid=1114;

1257 is the oid of the pg_type table and 1114 is the oid of the 
timestamp type.

It returns just this:

australia=# select * from pg_depend where refclassid=1247 and refobjid=1114;
  classid | objid | objsubid | refclassid | refobjid | refobjsubid | deptype
---------+-------+----------+------------+----------+-------------+---------
        0 |     0 |        0 |       1247 |     1114 |           0 | p
(1 row)

How is that possible?  I have heaps of columns that use the timestamp type:

select count(*) from pg_attribute where atttypid=1114;

If such dependencies aren't recorded, does the bit of code in alter 
column type that deletes them ever do anything?

Chris


Tue, 10 Aug 2004 12:13:22 +0800
Christopher Kings-Lynne <chriskl@familyhealth.com.au>
Can't figure out column type dependencies
Christopher Kings-Lynne <chriskl@familyhealth.com.au> writes:
> How is that possible?  I have heaps of columns that use the timestamp type:

We don't make dependency entries for pinned objects (which includes all
built-in datatypes).

			regards, tom lane

Tue, 10 Aug 2004 00:43:52 -0400
Tom Lane <tgl@sss.pgh.pa.us>
Re: Can't figure out column type dependencies 