Hi
This is also a long standing issue but one I have never got around to
reporting. With our database (5004 views and tables, 260 schemas,
211,493 columns) when you go :
Table -> Properties... -> Columns
and then click on Add pgAdmin hangs. I believe it does actually come
back if you wait long enough, although I have just got used to opening a
query window and using alter table
Cheers
Kieran