Sergey Shelukhin created HIVE-17775:
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Summary: PTF should take advantage of partitioning, bucketing and
sorting
Key: HIVE-17775
URL: https://issues.apache.org/jira/browse/HIVE-17775
Project: Hive
Issue Type: Bug
Reporter: Sergey Shelukhin
When the user is running a PTF that partitions by a partition column of the
table (or a bucketing column, although that could be more difficult), or orders
by a partition column, or a column on which the table is already sorted being
bucketed+sorted, the PTF should take advantage of these.
That can turn some PTF operators (that I'm presently observing on a real query
from a user) into a single scan, or at least a much simpler DAG; as it is, the
query is very slow.
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