[DRILL-7381] Query to a map field returns nulls with hive native reader

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.17.0
• Labels: ready-to-commit
• Assignee: Igor Guzenko
• Reporter: Anton Gozhiy
• Created: 19/Sep/19 15:03
• Updated: 01/Oct/19 17:27
• Resolved: 26/Sep/19 16:07

Description

Query:

select t.c_nation.n_region.r_name from hive.customer_complex t limit 5

Expected results:

AFRICA
MIDDLE EAST
AMERICA
MIDDLE EAST
AMERICA

Actual results:

null
null
null
null
null

Workaround:

set store.hive.optimize_scan_with_native_readers = false;