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Dataset

NMDC analysis-results resource

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Sources cited
1 project report and 1 cross-project digest, listed in the margin
Relations
supports 1refines 1
Linked from
3 pages1 topic

What this entity is

Canonical name: NMDC analysis-results resource. 1

Known alias: nmdc.results. 1

Stable external identifier: No stable external identifier was reported in the audit. 1

This is a genuine NMDC resource hosted in the nmdc tenant and distinct from the NCBI BioSample re-host, Pfam re-host, Arkin derivative, MAG catalog, and NEON namesake resources discussed in the audit. 1

Key facts

  • The nmdc.results resource had a latest reported Iceberg commit of 2026-05-20. 1
  • The nmdc.results.annotation_kegg_orthology table contains 1.83B rows. 1
  • Row counts for NMDC tables, including nmdc.results.annotation_kegg_orthology, returned instantly through Iceberg metadata using SELECT COUNT(*). 1
  • The audit found that metadata introspection and data reads have different access surfaces, because DESCRIBE DATABASE EXTENDED kbase.nmdc_* raised ForbiddenException for a kesciencero/microbialdiscoveryforge principal even when COUNT(*) on the same tables succeeded. 1
  • The resource is part of a broader naming problem in which 20 database names containing nmdc resolve to 7 real, maintained resources across three tenants and six provenance classes. 1
  • The audit recommends exposing Iceberg max(committed_at) during discovery because database properties were empty and catalog tables had no comments. 1
  • The pitfalls document refines this access and discovery guidance: NMDC classifier and metabolomics tables use distinct file_id namespaces (nmdc:dobj-11-* and nmdc:dobj-12-*) and must be bridged through sample_id in omics_files_table, which contains 385,562 rows. 2
  • The same document supports provenance-aware interpretation by warning that NMDC taxonomy_features is a wide matrix with numeric taxon-ID columns, while abiotic_features stores unmeasured variables as 0.0 rather than NULL; these representations require schema inspection and explicit handling before analysis. 2

Relations to the corpus

The resource is part of the NMDC-related cross-tenant discovery problem described in cross-tenant-data-bridging. 1

It should be interpreted alongside the maintained nmdc-metadata resource and the NMDC-derived nmdc mags catalog rather than as a stand-alone boundary for all resources whose names contain nmdc. 1

The audit’s complete discussion is summarized in NMDC Context Audit, while the operational safeguards are summarized in pitfalls. 1,2

Sources cited

  1. NMDC Context Auditnmdc_context_audit · cited 13× · primary source
  2. KBase Data Lakehouse: Common Pitfalls & Gotchaspitfalls · cited 3× · cross-project digest · refines · supports