## 52.21. `pg_event_trigger`

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 The catalog `pg_event_trigger` stores event triggers. See [Chapter 40](event-triggers.html) for more information.

**Table 52.21. `pg_event_trigger` Columns**

|                                                                                                                                          Column Type<br/><br/> Description                                                                                                                                          |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                        `oid` `oid`<br/><br/> Row identifier                                                                                                                                         |
|                                                                                                                              `evtname` `name`<br/><br/> Trigger name (must be unique)                                                                                                                               |
|                                                                                                                    `evtevent` `name`<br/><br/> Identifies the event for which this trigger fires                                                                                                                    |
|                                                                                                   `evtowner` `oid` (references [`pg_authid`](catalog-pg-authid.html).`oid`)<br/><br/> Owner of the event trigger                                                                                                    |
|                                                                                                      `evtfoid` `oid` (references [`pg_proc`](catalog-pg-proc.html).`oid`)<br/><br/> The function to be called                                                                                                       |
|`evtenabled` `char`<br/><br/> Controls in which [session\_replication\_role](runtime-config-client.html#GUC-SESSION-REPLICATION-ROLE) modes the event trigger fires. `O` = trigger fires in “origin” and “local” modes, `D` = trigger is disabled, `R` = trigger fires in “replica” mode, `A` = trigger fires always.|
|                                                                         `evttags` `text[]`<br/><br/> 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.                                                                          |

