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><A
NAME="CATALOG-PG-EVENT-TRIGGER"
>47.21. <TT
CLASS="STRUCTNAME"
>pg_event_trigger</TT
></A
></H1
><P
> The catalog <TT
CLASS="STRUCTNAME"
>pg_event_trigger</TT
> stores event triggers.
See <A
HREF="event-triggers.html"
>Chapter 37</A
> for more information.
</P
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><P
><B
>Table 47-21. <TT
CLASS="STRUCTNAME"
>pg_event_trigger</TT
> Columns</B
></P
><TABLE
BORDER="1"
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><COL><COL><COL><COL><THEAD
><TR
><TH
>Name</TH
><TH
>Type</TH
><TH
>References</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>evtname</TT
></TD
><TD
><TT
CLASS="TYPE"
>name</TT
></TD
><TD
> </TD
><TD
>Trigger name (must be unique)</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>evtevent</TT
></TD
><TD
><TT
CLASS="TYPE"
>name</TT
></TD
><TD
> </TD
><TD
>Identifies the event for which this trigger fires</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>evtowner</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-authid.html"
><TT
CLASS="STRUCTNAME"
>pg_authid</TT
></A
>.oid</TT
></TD
><TD
>Owner of the event trigger</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>evtfoid</TT
></TD
><TD
><TT
CLASS="TYPE"
>oid</TT
></TD
><TD
><TT
CLASS="LITERAL"
><A
HREF="catalog-pg-proc.html"
><TT
CLASS="STRUCTNAME"
>pg_proc</TT
></A
>.oid</TT
></TD
><TD
>The function to be called</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>evtenabled</TT
></TD
><TD
><TT
CLASS="TYPE"
>char</TT
></TD
><TD
> </TD
><TD
> Controls in which <A
HREF="runtime-config-client.html#GUC-SESSION-REPLICATION-ROLE"
>session_replication_role</A
> modes
the event trigger fires.
<TT
CLASS="LITERAL"
>O</TT
> = trigger fires in <SPAN
CLASS="QUOTE"
>"origin"</SPAN
> and <SPAN
CLASS="QUOTE"
>"local"</SPAN
> modes,
<TT
CLASS="LITERAL"
>D</TT
> = trigger is disabled,
<TT
CLASS="LITERAL"
>R</TT
> = trigger fires in <SPAN
CLASS="QUOTE"
>"replica"</SPAN
> mode,
<TT
CLASS="LITERAL"
>A</TT
> = trigger fires always.
</TD
></TR
><TR
><TD
><TT
CLASS="STRUCTFIELD"
>evttags</TT
></TD
><TD
><TT
CLASS="TYPE"
>text[]</TT
></TD
><TD
> </TD
><TD
> Command tags for which this trigger will fire. If NULL, the firing
of this trigger is not restricted on the basis of the command tag.
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