Module canonical 

Canonical URLs published by the SQL on FHIR implementation guide.

Edition 3 (3.0.0-ballot) moved the guide to HL7 stewardship, and a change of stewardship reissues every canonical URL it publishes. The base changed from https://sql-on-fhir.org/ig to IG_CANONICAL_BASE, and the package identifier from org.sql-on-fhir.ig to hl7.fhir.uv.sql-on-fhir.

ViewDefinition is the one exception. It became an additional resource rather than a logical model, so it carries a canonical in the core FHIR namespace (VIEW_DEFINITION_STRUCTURE_DEFINITION) following the convention for a resource incubated outside core — not one under this guide’s base.

The 2.0.0-era URLs are kept alongside as LEGACY_* so resources authored against the previous release still parse. Version 2.0.0 remains published at its original canonical, and the two releases install side by side, so a reader accepting both is correct against either.

Constants

EXPORT_OUTPUT_FORMAT_VALUE_SET

Output formats bound by $sql-export. Narrower than OUTPUT_FORMAT_VALUE_SET: it omits fhir, which only a run can produce.

EXPORT_STATUS_VALUE_SET

States an asynchronous export passes through.

IG_CANONICAL_BASE

Canonical base for every artifact this guide publishes, except ViewDefinition itself.

IG_PACKAGE_ID

FHIR package identifier for the guide.

LEGACY_IG_CANONICAL_BASE

Canonical base used by version 2.0.0 and the pre-ballot continuous build.

LEGACY_LIBRARY_TYPES_CODE_SYSTEM

Pre-ballot LibraryTypesCodes system. Accepted on read for back-compat.

LEGACY_VIEW_DEFINITION_STRUCTURE_DEFINITION

ViewDefinition’s 2.0.0 canonical, when it was a logical model. Instances authored against 2.0.0 carried this string in resourceType; 3.0.0 instances carry the plain ViewDefinition token instead.

LIBRARY_TYPES_CODE_SYSTEM

Library.type.coding.system fixed by the SQLQuery and SQLView profiles.

OUTPUT_FORMAT_VALUE_SET

Output formats bound by $sql-run (csv, ndjson, parquet, json, fhir).

SQL_EXPORT_OPERATION_DEFINITION

$sql-export — asynchronous export of one or more subjects as a single job.

SQL_QUERY_PROFILE

The SQLQuery profile on Library.

SQL_RUN_OPERATION_DEFINITION

$sql-run — synchronous evaluation of a single subject.

SQL_TEXT_EXTENSION

The sql-text extension carrying plain-text SQL alongside the base64 Attachment.data.

SQL_VIEW_PROFILE

The SQLView profile on Library.

VIEW_DEFINITION_STRUCTURE_DEFINITION

ViewDefinition’s StructureDefinition, in the core FHIR namespace because it is an additional resource rather than an artifact of this guide.