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SYSTEM CATALOG · System catalog

pg_event_trigger

The catalog pg_event_trigger stores event triggers. See Chapter 38 for more information.

First seen PG 9.3Last seen PG 19Columns 7

Checked column by column against a PostgreSQL 18.6 instance · Raw measurement record ↗

Columns PostgreSQL 18

pg_event_trigger
COLUMNTYPEDESCRIPTION
oid oidNOT NULL Row identifier
evtname nameNOT NULL Trigger name (must be unique)
evtevent nameNOT NULL Identifies the event for which this trigger fires
evtowner oidNOT NULL Owner of the event triggerReferences:pg_authid.oid
evtfoid oidNOT NULL The function to be calledReferences:pg_proc.oid
evtenabled "char"NOT NULLDocumented as:char Controls in which 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[] 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.

Columns marked "implicit" are not included in SELECT *; some early statistics views are completed from same-version source, and the extra provenance is shown in the column description.

Common system columns 6

System attributes PostgreSQL provides, normally not expanded by SELECT *. Kept separately so they are not mixed in with ordinary columns.

ColumnsTypeattnum
tableoidoid-6
cmaxcid-5
xmaxxid-4
cmincid-3
xminxid-2
ctidtid-1

Column evolution matrix

Hover a cell for the column type
PresentAdded / type or attribute changeRemoved
COLUMN9.09.19.29.39.49.59.610111213141516171819
oid
evtname
evtevent
evtowner
evtfoid
evtenabled
evttags

9.0 is the coverage baseline; a column already present in the baseline is not marked as added. The matrix aligns columns by name, so a rename appears as the old column removed and a new column added.

Evolution timeline

Changes between adjacent majors

PostgreSQL 17 ← 16

Catalog description updated

PostgreSQL 14 ← 13

Catalog description updated

PostgreSQL 13 ← 12

1 column description updates

PostgreSQL 12 ← 11

~ oid: implicit → ordinary1 column description updatesCatalog description updated

PostgreSQL 11 ← 10

Catalog description updated

PostgreSQL 10 ← 9.6

1 column description updatesCatalog description updated

PostgreSQL 9.6 ← 9.5

Catalog description updated

PostgreSQL 9.3 ← 9.2Catalog added

+ oid+ evtname+ evtevent+ evtowner+ evtfoid+ evtenabled+ evttags

Compare any two versions

Pick two versions to see added, removed, and retyped columns. The interactive comparison needs JavaScript; the evolution timeline reads fine without it.