 objects have been deleted from the
    system catalogs, so it's not possible to look them up anymore.
   </P
><P
>     Event triggers (like other functions) cannot be executed in an aborted
     transaction.  Thus, if a DDL command fails with an error, any associated
     <TT
CLASS="LITERAL"
>ddl_command_end</TT
> triggers will not be executed.  Conversely,
     if a <TT
CLASS="LITERAL"
>ddl_command_start</TT
> trigger fails with an error, no
     further event triggers will fire, and no attempt will be ma