ple;
    Trigger      *tg_trigger;
    Buffer        tg_trigtuplebuf;
    Buffer        tg_newtuplebuf;
} TriggerData;</PRE
><P>

    where the members are defined as follows:

    <P
></P
></P><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="STRUCTFIELD"
>type</TT
></DT
><DD
><P
>        Always <TT
CLASS="LITERAL"
>T_TriggerData</TT
>.
       </P
></DD
><DT
><TT
CLASS="STRUCTFIELD"
>tg_event</TT
></DT
><DD
><P
>        Describes the event for which the function is called. You can use the
        following m