[HIVE-19399] Down cast from int to tinyint generating incorrect value for vectorization

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.0
• Component/s: Vectorization
• Assignee: Unassigned
• Reporter: Haifeng Chen
• Created: 03/May/18 08:13
• Updated: 01/Jun/18 05:45

Description

 The following sql scripts generating different result for vectorization disabled and enabled (both for ORC and for parquet).
  drop table test_schema;
  create table test_schema (f int) stored as parquet;
  insert into test_schema values ('99999');
  select cast(f as tinyint) + 1 from test_schema;

For non-vectorization, the result is -96 while for vectorization mode, it is 100000