Rainer Döbele created EMPIREDB-303:
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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
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