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https://issues.apache.org/jira/browse/HIVE-2794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204295#comment-13204295
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Carl Steinbach commented on HIVE-2794:
--------------------------------------
"SELECT MAX(p) FROM empty" should return NULL, but instead it returns an empty
result set:
{noformat}
hive> CREATE TABLE empty (c INT) PARTITIONED BY (p INT);
hive> SELECT MAX(c) FROM empty;
NULL
hive> SELECT MAX(p) FROM empty;
hive> ALTER TABLE empty ADD PARTITION (p=1);
hive> SELECT MAX(p) FROM empty;
1
hive>
{noformat}
> Aggregations without grouping should return NULL when applied to partitioning
> column of a partitionless table
> -------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-2794
> URL: https://issues.apache.org/jira/browse/HIVE-2794
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Carl Steinbach
>
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