Kostiantyn Kudriavtsev created HIVE-6107:
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Summary: Introduce nvl and nvl2 UDF similar to Oracle
Key: HIVE-6107
URL: https://issues.apache.org/jira/browse/HIVE-6107
Project: Hive
Issue Type: New Feature
Components: UDF
Reporter: Kostiantyn Kudriavtsev
Priority: Minor
Introduce new UDF:
nvl : substitute a value when a null value is encountered
NVL( string, replace_with )
where string is the string to test for a null value
nvl2 : extends the functionality found in the NVL function. It lets you
substitutes a value when a null value is encountered as well as when a non-null
value is encountered.
NVL2( string1, value_if_NOT_null, value_if_null )
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