Hi,
I checked our test cases, we have a similar test case and works fine.
You can refer "update carbon table[select from source table with where and
exist]" in
UpdateCarbonTableTestCase.scala,
In that test case, you can have a query like below
*sql("""update iud.dest11 d set (d.c3, d.c5 ) = (select s.c33,s.c55 from
iud.source2 s where d.c1 = s.c11)""").show()*
It works fine. I didn't get the actual question, where you said
*when B.column_name1 == '' , no update operation is performed.
when B.column_name1 !='', update operation is performed.*
can you please tell me what value are you trying to update?
If you can give the complete test case, it will be useful to check.
Also, please join the slack channel for detailed discussion.
https://join.slack.com/t/carbondataworkspace/shared_invite/zt-g8sv1g92-pr3GTvjrW5H9DVvNl6H2dg
Thanks,
Regards,
Akash R Nilugal
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