HV00M — fdw_unable_to_create_reply

HV00M denotes failure to create an FDW reply object or result channel. The PostgreSQL 18.6 core/contrib scan has no direct resolved report group; the exact object and driver boundary must be read from the installed wrapper.

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

9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 13 14 15 16 17 18 19 20

aliases: Unknown
class name: Foreign Data Wrapper Error (SQL/MED)
condition name: fdw_unable_to_create_reply
lang: en
sqlstate: HV00M

Definition PG 18

HV00M — fdw_unable_to_create_reply

At a glance {#at-a-glance}

HV00M denotes failure to create an FDW reply object or result channel. The PostgreSQL 18.6 core/contrib scan has no direct resolved report group; the exact object and driver boundary must be read from the installed wrapper.

Meaning {#meaning}

An FDW may create an execution and a separate reply/result object. HV00M names failure of the latter setup; it does not prove that the remote statement was never sent.

Messages and diagnostics {#messages}

No fixed core message is confirmed. Keep the operation, reply format, connection/handle state, wrapper and driver versions, and any remote diagnostic.

Diagnosis {#diagnosis}

Trace reply allocation/registration and the point at which the execution object was created. Distinguish local result-buffer failure from a remote protocol rejection. Check whether cleanup left a stale reply handle.

Response {#response}

Repair the wrapper's result-channel setup and clean up the affected handle according to its API. Before repeating a write, establish remote completion from the wrapper or remote logs; HV00M does not make an automatic retry safe.

Versions {#versions}

HV00M is present from 9.1.0 through 18.6 and in 19 Beta 3; no pre-9 definition observation is available.

Related {#related}

HV00L covers execution-object creation; HV00K covers a reply handle; HV00B covers an invalid generic handle.

Sources {#sources}

errcodes.txt — definition, SHA-256 6e8de346643ba84aa3c9c6a73360acfc7b2dfb89162c06c08ce9bf5bcd5bbcba.
fdwapi.h — callback boundary.
Structured evidence — bounded source scan.

Compare versions

SQLSTATE evidence and recorded runtime versions

claims · identity

{
  "claim_id": "identity",
  "limits": "",
  "method": "Read the fixed definition row and macro.",
  "position": 0,
  "runtime": [],
  "sources": [
    "src.errcodes.18.6"
  ],
  "statement": "HV00M is fdw_unable_to_create_reply in SQL/MED Class HV."
}

claims · scan-boundary

{
  "claim_id": "scan-boundary",
  "limits": "The generic FDW API boundary does not identify an emitter for this SQLSTATE. The scan does not cover external wrappers, drivers, remote systems, or user callbacks.",
  "method": "Compare resolved report groups with the macro mapping.",
  "position": 1,
  "runtime": [],
  "sources": [
    "src.calls.REL_18_6",
    "src.fdwapi.18.6"
  ],
  "statement": "No direct HV00M report group was resolved in the locked PostgreSQL 18.6 core/contrib call scan."
}

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"
}

sources · src.fdwapi.18.6

{
  "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
  "docs_url": "",
  "kind": "upstream_source",
  "location": "",
  "path": "src/include/foreign/fdwapi.h",
  "position": 1,
  "sha256": "572ba892e6435ca92d3b3bc84dde5bbd3160cc3a082693daab8daa835c4d2cd7",
  "source_id": "src.fdwapi.18.6",
  "tag": "REL_18_6",
  "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/src/include/foreign/fdwapi.h"
}

sources · src.calls.REL_18_6

{
  "commit": "",
  "docs_url": "",
  "kind": "local_artifact",
  "location": "",
  "path": "raw/calls/REL_18_6.jsonl",
  "position": 2,
  "sha256": "9ee8a0e81d8f0825c5c1ae45583439859a26e602bdd4ce2f2a62aa278867ccbf",
  "source_id": "src.calls.REL_18_6",
  "tag": "",
  "url": ""
}

Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · english-manuals:819ca06e5176419d4e66b51ef23d9c65525a083a7535fca787be42778b2d8f3d

Text language: en · english-manuals:819ca06e5176419d4e66b51ef23d9c65525a083a7535fca787be42778b2d8f3d