[CALCITE-3155] AssertionError in RelToSqlConverter when visiting empty Values node

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.21.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Danny Chen
• Reporter: Musbah EL FIL
• Created: 29/Jun/19 07:32
• Updated: 06/Jan/20 13:46
• Resolved: 01/Jul/19 02:33

Description

Given the query:

select A."department_id"  from "foodmart"."employee" A  where A."department_id" = ( select min( A."department_id") from "foodmart"."department" B where 1=2 )

The conversion from SqlNode to RelNode is correct, however when going from RelNode to SqlNode, an exception was being thrown.

 

Issue Links

• is related to: CALCITE-3191 In JDBC adapter for MySQL, implement Values by generating SELECT without FROM
• links to: GitHub Pull Request #1286