ted in
   <TT
CLASS="STRUCTNAME"
>pg_cast</TT
>.  Another important exception is that
   <SPAN
CLASS="QUOTE"
>"automatic I/O conversion casts"</SPAN
>, those performed using a data
   type's own I/O functions to convert to or from <TT
CLASS="TYPE"
>text</TT
> or other
   string types, are not explicitly represented in
   <TT
CLASS="STRUCTNAME"
>pg_cast</TT
>.
  </P
><DIV
CLASS="TABLE"
><A
NAME="AEN92152"
></A
><P
><B
>Table 47-10. <TT
CLASS="STRUCTNAME"
>pg_cast</TT
> Columns</B
></P
><TABLE
BORDER="1"
CLAS