Joining output from two databases

Hi,

I have two database reader nodes that produce two outputs.

1st DB reader output:

Partner_id    Partner_name
123                   abc
456                   def
789                   ghi

2nd DB reader output:

VIN           Partner_id    
56788990         123
4547y575         
6765859t         123

Desired output:

> VIN                     Partner_id    Partner_name
> 56788990                  123              abc
> 4547y575                   
> 6765859t                   123              abc

Doing this in SQL is not an option due to lack of common indexed primary key in both tables.
Is there a node I could use to achieve this?
I tried the Joiner node (joined on partner_id) but i got this

> VIN                     Partner_id    Partner_name
> 56788990                  123              abc
> 4547y575                   123              abc
> 6765859t                   123              abc

Notice that for VIN ending with 575 there should be no partner_id or partner_name

First table left outer join to second one on Parameter_id should work

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