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fix: upgrade HTTP links to HTTPS across documentation

Status: Open.

#790 In OHDSI/CommonDataModel;

· rtmalikian opened on Jun 19, 2026

fix: mark cohort_definition_id as primary key in cohort_definition table for v5.3 and v5.4

Status: Open.

#787 In OHDSI/CommonDataModel;

· rtmalikian opened on Jun 19, 2026

drug_concept_id - "... ETL to provide as much information as possible from the data" - where to cut off validity?

Status: Open.

#785 In OHDSI/CommonDataModel;

· nrodemund opened on May 5, 2026

Table PERSON vs EPISODE) foreign key columns to match exactly

Status: Open.

#784 In OHDSI/CommonDataModel;

· pmoarshaduk opened on Apr 18, 2026

Add Databricks DDL for OMOP CDM v5.4

Status: Open.

#781 In OHDSI/CommonDataModel;

· tenbosch opened on Mar 26, 2026

Observation table is missing unit_source_concept_id field

Proposal

Status: Open.

#779 In OHDSI/CommonDataModel;

· MelaniePhilofsky opened on Feb 26, 2026

Missing quotes around text block in CDM definition (CSV file for v5.4) result in incorrect number of items for that row.

Bug

Status: Open.

#775 In OHDSI/CommonDataModel;

· lgautier opened on Feb 13, 2026

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CDM v5.5 2026 DDL

Field cohort_definition_id in table cohort_definition should be a primary key.

Status: Open.

#772 In OHDSI/CommonDataModel;

· lgautier opened on Feb 9, 2026

Constraints for table concept_relationship (primary key and maybe coherence of start and end dates)

Status: Open.

#771 In OHDSI/CommonDataModel;

· lgautier opened on Feb 9, 2026

Missing primary key for table death?

Status: Open.

#770 In OHDSI/CommonDataModel;

· lgautier opened on Feb 8, 2026

remove this file

Status: Open.

#763 In OHDSI/CommonDataModel;

· vojtechhuser opened on Nov 14, 2025

Drug era calculation gap_days calculation

Status: Open.

#761 In OHDSI/CommonDataModel;

· catalamarti opened on Oct 27, 2025