[jira] [Created] (DRILL-4475) Joins containing join key between varbinary and non-varbinary fails

["Krystal (JIRA)" <ji...@apache.org>]

Krystal created DRILL-4475:
------------------------------

             Summary: Joins containing join key between varbinary and non-varbinary fails
                 Key: DRILL-4475
                 URL: https://issues.apache.org/jira/browse/DRILL-4475
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 1.5.0
            Reporter: Krystal
            Assignee: Sean Hsuan-Yi Chu


Join queries that contain one join key as varbinary and the other join key as a non-varbinary such as varchar fails.  For example:

select s.name, s.age, s.gpa, v.registration from student_csv_v s inner join voter_csv_v v on (s.name = v.name);
Error: VALIDATION ERROR: From line 1, column 95 to line 1, column 109: Cannot apply '=' to arguments of type '<VARBINARY(1)> = <CHAR(30)>'. Supported form(s): '<COMPARABLE_TYPE> = <COMPARABLE_TYPE>'

s.name is a varbinary and v.name is char(30).  Drill should implicitly cast the join keys to varchar at planning time.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)