HV091 — fdw_invalid_descriptor_field_identifier
HV091 — fdw_invalid_descriptor_field_identifier
At a glance
HV091 identifies a descriptor field identifier that an FDW boundary cannot use. No resolved HV091 report group was found in the locked PostgreSQL 18.6 core/contrib call scan, so no particular descriptor namespace or message is confirmed.
| Field | Value |
|---|---|
| SQLSTATE | HV091 |
| Condition | fdw_invalid_descriptor_field_identifier |
| Status | active |
| Known present by | 9.1.0 |
| Locked snapshots | 9.1.24, 9.2.24, 9.3.25, 9.4.26, 9.5.25, 9.6.24, 10.23, 11.22, 12.22, 13.23, 14.24, 15.19, 16.15, 17.11, 18.6, 19beta3 |
| Macros | ERRCODE_FDW_INVALID_DESCRIPTOR_FIELD_IDENTIFIER |
| Aliases | — |
Meaning
A field identifier may select a name, type, length, or other descriptor property in a wrapper-owned interface. Generic FDW callback signatures do not define this SQLSTATE’s field namespace.
Messages and diagnostics
No resolved 18.6 core/contrib message variant was found. Preserve the full diagnostic, descriptor kind, field identifier, expected namespace if reported, callback phase, and wrapper/driver version.
Diagnosis
Identify the descriptor producer and consumer, then compare the requested field identifier with that implementation’s documented or source-defined fields. Do not replace it with a column ordinal unless the wrapper explicitly defines that mapping.
Response
Use the field identifier supported by the actual descriptor interface, or correct the producer/consumer version mismatch when source evidence shows one. Repeating the same lookup cannot make an unknown identifier valid.
Versions
HV091 is present in the locked definition snapshots from 9.1.24 through 18.6 and 19 Beta 3, with known_present_by 9.1.0. The available pre-9 definition material does not establish an exact introduction release.
Related
HV021 concerns inconsistent descriptor information; HV008 concerns an FDW column sequence; HV090 concerns string or buffer length.
Sources
errcodes.txt— definition, SHA-2566e8de346643ba84aa3c9c6a73360acfc7b2dfb89162c06c08ce9bf5bcd5bbcba.fdwapi.h— generic FDW callback boundary.- Structured evidence — fixed 18.6 sources and bounded scan.