Jesus Camacho Rodriguez created HIVE-12994:
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Summary: Implement support for NULLS FIRST/NULLS LAST
Key: HIVE-12994
URL: https://issues.apache.org/jira/browse/HIVE-12994
Project: Hive
Issue Type: New Feature
Components: CBO, Metastore, Parser, Serializers/Deserializers
Affects Versions: 2.1.0
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
>From SQL:2003, the NULLS FIRST and NULLS LAST options can be used to determine
>whether nulls appear before or after non-null data values when the ORDER BY
>clause is used.
SQL standard does not specify the behavior by default. Currently in Hive, null
values sort as if lower than any non-null value; that is, NULLS FIRST is the
default for ASC order, and NULLS LAST for DESC order.
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