[CALCITE-2776] Wrong value when accessing struct types with one attribute

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: avatica-1.13.0
• Fix Version/s: avatica-1.14.0
• Component/s: avatica
• Labels: pull-request-available
• Assignee: Stamatis Zampetakis
• Reporter: Stamatis Zampetakis
• Created: 08/Jan/19 09:31
• Updated: 29/Apr/19 05:59
• Resolved: 28/Mar/19 07:01

Description

The accessors for struct types with one attribute are not created correctly leading to wrong values when the internal representation for structured types is an Object[].

For example consider the following query:

select * from (values
    (1, ROW(1)),
    (2, ROW(2))) as v(id,struct);

Executing this query on calcite returns:

 +----+--------------------------------+
 | ID | STRUCT                         |
 +----+--------------------------------+
 |  1 | {[Ljava.lang.Object;@4ff4357f} |
 |  2 | {[Ljava.lang.Object;@49cb9cb5} |
 +----+--------------------------------+

instead of:

+----+--------+
| ID | STRUCT |
+----+--------+
|  1 | {1}    |
|  2 | {2}    |
+----+--------+

Issue Links

• relates to: CALCITE-2677 Struct types with one field are not mapped correctly to Java Classes
• links to: GitHub Pull Request #82
• links to: PR#82