[CALCITE-411] Relax ProjectRelbase restriction on duplicate names

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Assignee: Julian Hyde
• Reporter: Harish Butani
• Created: 16/Sep/14 21:38
• Updated: 17/Sep/14 16:23
• Resolved: 17/Sep/14 16:23

Description

ProjectRelBase:180

!Util.isDistinct(rowType.getFieldNames()

disallows duplicate fieldNames.

But this the following is allowed in mysql, postgres and hive

create table t1(x int, y int);
select x,x from t1;

Can optiq relax this check?