
NAME="CATALOG-PG-CAST"
>47.10. <TT
CLASS="STRUCTNAME"
>pg_cast</TT
></A
></H1
><P
>   The catalog <TT
CLASS="STRUCTNAME"
>pg_cast</TT
> stores data type conversion
   paths, both built-in and user-defined.
  </P
><P
>   It should be noted that <TT
CLASS="STRUCTNAME"
>pg_cast</TT
> does not represent
   every type conversion that the system knows how to perform; only those that
   cannot be deduced from some generic rule.  For example, casting between a
   domain and its base type is not explicitly represen