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From "Alexander Pivovarov (JIRA)" <>
Subject [jira] [Commented] (HIVE-10427) collect_list() and collect_set() should accept struct types as argument
Date Thu, 21 May 2015 18:16:17 GMT


Alexander Pivovarov commented on HIVE-10427:

I recommend to add non-primitive array sort tests to integration tests

And to JUnit Tests - TestGenericUDFSortArray (which does not even exist).

> collect_list() and collect_set() should accept struct types as argument
> -----------------------------------------------------------------------
>                 Key: HIVE-10427
>                 URL:
>             Project: Hive
>          Issue Type: Wish
>          Components: UDF
>            Reporter: Alexander Behm
>            Assignee: Chao Sun
>         Attachments: HIVE-10427.1.patch, HIVE-10427.2.patch, HIVE-10427.3.patch
> The collect_list() and collect_set() functions currently only accept scalar argument
types. It would be very useful if these functions could also accept struct argument types
for creating nested data from flat data.
> For example, suppose I wanted to create a nested customers/orders table from two flat
tables, customers and orders. Then it'd be very convenient to write something like this:
> {code}
> insert into table nested_customers_orders
> select c.*, collect_list(named_struct("oid", o.oid, "order_date":
> from customers c inner join orders o on (c.cid = o.oid)
> group by c.cid
> {code}
> Thanks you for your consideration.

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