39P03 — event_trigger_protocol_violated

39P03 is eventtriggerprotocolviolated. Fixed event-trigger helpers reject calls outside their required sqldrop, table_rewrite, or event-trigger function context.

English manual coverage begins with PostgreSQL 8.1. Source history and runtime observations have their own recorded version boundaries.

Reading PG 18·Select a recorded version

9.5 9.6 10 11 12 13 14 15 16 17 18 19 20

aliases: Unknown
class name: External Routine Invocation Exception
condition name: event_trigger_protocol_violated
lang: en
sqlstate: 39P03

Definition PG 18

39P03

At a glance {#at-a-glance}

39P03 is event_trigger_protocol_violated. Fixed event-trigger helpers reject calls outside their required sql_drop, table_rewrite, or event-trigger function context.

Meaning {#meaning}

An event-trigger helper was called without the state it requires. The fixed messages identify sql_drop, table_rewrite, or a general event-trigger function context, so this is a call-context violation rather than an object-existence error.

Diagnosis {#diagnosis}

Identify the helper and required event context from the message. Check whether the call belongs in a sql_drop, table_rewrite, or other event-trigger function.

Response {#response}

Move the helper into the required event-trigger context or remove the invalid call; replaying the same DDL does not change that context.

Versions {#versions}

The locked catalogue records this condition from 9.5.0 in the listed formal snapshots and 19beta3; fixed source coverage is PostgreSQL 18.6.

Related {#related}

39P01, 39P02, P0004

Sources {#sources}

See the fixed event_trigger.c helper paths alongside the structured evidence record.

Compare versions

SQLSTATE evidence and recorded runtime versions

claims · identity

{
  "claim_id": "identity",
  "limits": "",
  "method": "Read the fixed definition row.",
  "position": 0,
  "runtime": [],
  "sources": [
    "src.errcodes.18.6"
  ],
  "statement": "39P03 is event_trigger_protocol_violated in Class 39."
}

claims · event-context

{
  "claim_id": "event-context",
  "limits": "",
  "method": "Read each currentEventTriggerState guard and its message.",
  "position": 1,
  "runtime": [],
  "sources": [
    "src.path.event-trigger"
  ],
  "statement": "The core event-trigger functions reject calls outside their required sql_drop, table_rewrite, or event-trigger context with this code."
}

claims · function-boundary

{
  "claim_id": "function-boundary",
  "limits": "",
  "method": "Compare the guard with the function named in the message.",
  "position": 2,
  "runtime": [],
  "sources": [
    "src.path.event-trigger"
  ],
  "statement": "The message names the required event-trigger function context, so the failing boundary is call context rather than object existence alone."
}

messages · message.sql-drop

{
  "limits": "",
  "message_id": "message.sql-drop",
  "path": "",
  "position": 0,
  "raw": {
    "id": "message.sql-drop",
    "primary_template": "%s can only be called in a sql_drop event trigger function",
    "severity_source": "ERROR",
    "sources": [
      "src.path.event-trigger"
    ],
    "sqlstate": "39P03"
  },
  "severity": "ERROR",
  "sources": [
    "src.path.event-trigger"
  ],
  "templates": [
    {
      "kind": "primary",
      "literal": "can only be called in a sql_drop event trigger function",
      "position": 0,
      "role": "",
      "template": "%s can only be called in a sql_drop event trigger function"
    }
  ]
}

messages · message.table-rewrite

{
  "limits": "",
  "message_id": "message.table-rewrite",
  "path": "",
  "position": 1,
  "raw": {
    "id": "message.table-rewrite",
    "primary_template": "%s can only be called in a table_rewrite event trigger function",
    "severity_source": "ERROR",
    "sources": [
      "src.path.event-trigger"
    ],
    "sqlstate": "39P03"
  },
  "severity": "ERROR",
  "sources": [
    "src.path.event-trigger"
  ],
  "templates": [
    {
      "kind": "primary",
      "literal": "can only be called in a table_rewrite event trigger function",
      "position": 0,
      "role": "",
      "template": "%s can only be called in a table_rewrite event trigger function"
    }
  ]
}

messages · message.event-trigger

{
  "limits": "",
  "message_id": "message.event-trigger",
  "path": "",
  "position": 2,
  "raw": {
    "id": "message.event-trigger",
    "primary_template": "%s can only be called in an event trigger function",
    "severity_source": "ERROR",
    "sources": [
      "src.path.event-trigger"
    ],
    "sqlstate": "39P03"
  },
  "severity": "ERROR",
  "sources": [
    "src.path.event-trigger"
  ],
  "templates": [
    {
      "kind": "primary",
      "literal": "can only be called in an event trigger function",
      "position": 0,
      "role": "",
      "template": "%s can only be called in an event trigger function"
    }
  ]
}

sources · src.errcodes.18.6

{
  "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
  "docs_url": "",
  "kind": "upstream_source",
  "location": "",
  "path": "src/backend/utils/errcodes.txt",
  "position": 0,
  "sha256": "6e8de346643ba84aa3c9c6a73360acfc7b2dfb89162c06c08ce9bf5bcd5bbcba",
  "source_id": "src.errcodes.18.6",
  "tag": "REL_18_6",
  "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/src/backend/utils/errcodes.txt#L313"
}

sources · src.calls.REL_18_6

{
  "commit": "",
  "docs_url": "",
  "kind": "local_artifact",
  "location": "",
  "path": "raw/calls/REL_18_6.jsonl",
  "position": 1,
  "sha256": "9ee8a0e81d8f0825c5c1ae45583439859a26e602bdd4ce2f2a62aa278867ccbf",
  "source_id": "src.calls.REL_18_6",
  "tag": "",
  "url": ""
}

sources · src.path.event-trigger

{
  "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
  "docs_url": "",
  "kind": "upstream_source",
  "location": "",
  "path": "src/backend/commands/event_trigger.c",
  "position": 2,
  "sha256": "0c9d6c5da18411f63110aea40635cd82d8e1d591db5931ff37f3a52f53ee69eb",
  "source_id": "src.path.event-trigger",
  "tag": "REL_18_6",
  "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/src/backend/commands/event_trigger.c#L1542-L1545"
}

Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · english-manuals:8a70296194d2a159053ae04c00415ef245e36330805120f5a8ed3aafe4f2ac64

Text language: en · english-manuals:8a70296194d2a159053ae04c00415ef245e36330805120f5a8ed3aafe4f2ac64