Common Data Model v6.0
=================

See full CDM specification file on our github [wiki](https://github.com/OHDSI/CommonDataModel/wiki) or in the [CDM V6.0 PDF]


Release Notes for v6.0
=============

### This version address the following issues/pull requests:

* [#81](https://github.com/OHDSI/CommonDataModel/pull/81) Adds the COST table
* [#137](https://github.com/OHDSI/CommonDataModel/pull/137) Adds the SURVEY_CONDUCT table
* [#181](https://github.com/OHDSI/CommonDataModel/pull/181) Adds the LOCATION_HISTORY table
* [#91](https://github.com/OHDSI/CommonDataModel/issues/91) Latitude and longitude added to LOCATION table
* [#107](https://github.com/OHDSI/CommonDataModel/issues/107) Contract owner information added to PAYER_PLAN_PERIOD 
* [#120](https://github.com/OHDSI/CommonDataModel/pull/120) New fields added to PAYER_PLAN_PERIOD (PAYER_CONCEPT_ID, PLAN_CONCEPT_ID)
* [#166](https://github.com/OHDSI/CommonDataModel/issues/166) Record inserted into METADATA to document CDM version
* [#172](https://github.com/OHDSI/CommonDataModel/pull/172) NOTE_EVENT_ID and NOTE_DOMAIN_ID (NOTE_EVENT_TABLE_CONCEPT_ID) added to NOTE
* [#198](https://github.com/OHDSI/CommonDataModel/pull/198) Change IDs to BIGINT 
* [#153](https://github.com/OHDSI/CommonDataModel/issues/153) ADMISSION_SOURCE_CONCEPT_ID changed to ADMITTED_FROM_CONCEPT_ID 

Additional Updates
==================

* DATE fields are now optional and DATETIME fields are mandatory

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This repo contains the definition of the OMOP Common Data Model. It supports the SQL technologies: BigQuery, Impala, Netezza, Oracle, Parallel Data Warehouse, Postgres, Redshift, and SQL Server. For each, the DDL, constraints and indexes (if appropriate) are defined. 


Versions are defined using tagging and versioning. Full versions (V6, 7 etc.) are usually released at most once a year and are not backwards compatible. Minor versions (V5.1, 5.2 etc.) are not guaranteed to be backwards compatible though an effort is made to make sure that current queries will not break. Micro versions (V5.1.1, V5.1.2 etc.) are released irregularly and often, and contain small hot fixes or backward compatible changes to the last minor version.