Retrieving Comments from a PostgreSQL DB

Question

I\'m running a project on a Postgres database and need to retrieve the comments on columns within the DB to be used as table headings and such. I have seen that there are a

Answer 1

It all works by oid,

mat=> SELECT c.oid FROM pg_catalog.pg_class c WHERE c.relname = 'customers';
  oid  
-------
 23208
(1 row)

Now, I have the oid for that table, so I can ask :

mat=> select pg_catalog.obj_description(23208);
  obj_description  
-------------------
 Customers
(1 row)

Then, I can ask for the description of the fourth column :

mat=> select pg_catalog.col_description(23208,4);
             col_description             
-----------------------------------------
 Customer codes, CHS, FACTPOST, POWER...
(1 row)

If you want to know which queries does psql run when you do \dt+ or \d+ customers, just run it with -E.