You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@empire-db.apache.org by "Rainer Döbele (Jira)" <ji...@apache.org> on 2019/09/10 12:09:00 UTC

[jira] [Created] (EMPIREDB-303) Add support for Unique-Indexes which allow null values

Rainer Döbele created EMPIREDB-303:
--------------------------------------

             Summary: Add support for Unique-Indexes which allow null values
                 Key: EMPIREDB-303
                 URL: https://issues.apache.org/jira/browse/EMPIREDB-303
             Project: Empire-DB
          Issue Type: Improvement
          Components: Core
            Reporter: Rainer Döbele


Databases might support Unique-Indexes that allow Null values.

In SQL-Server the Syntax is like:

CREATE UNIQUE INDEX SOMECOLUMN_IDX ON SOMETABLE (SOMECOLUMN) WHERE SOMECOLUMN IS NOT NULL



--
This message was sent by Atlassian Jira
(v8.3.2#803003)