You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hive.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2016/06/07 19:29:21 UTC
[jira] [Created] (HIVE-13963) vectorization - string arguments may
be converted to decimal null
Sergey Shelukhin created HIVE-13963:
---------------------------------------
Summary: vectorization - string arguments may be converted to decimal null
Key: HIVE-13963
URL: https://issues.apache.org/jira/browse/HIVE-13963
Project: Hive
Issue Type: Bug
Reporter: Sergey Shelukhin
Assignee: Matt McCline
Priority: Critical
See HIVE-13957.
The default precision and scale for the implicit decimal cast are max,max, ie 38,38. Those don't do what the code may assume they do. All the values > 0 become invalid and precision-scale enforcement automatically converts them to null.
We need to
1) Validate when this happens in/after the conversion code and bail;
2) Or, derive precision and scale from the constants themselves so they all fit, instead;
3) Or, derive it from the type of whatever caused the conversion in the first place (e.g. IN column decimal); however, this could be function-specific (e.g. IN just needs equality, BETWEEN would need at least one extra digit, arithmetic, if this ever happens, would need everything, etc.);
4) Something else? :)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)