[DISCUSSION] Support altering datatype in case of complex columns

[akshay_nuthala]

Hi everyone,

Currently carbon only supports altering datatypes in case of primitive types.
We can extend it to complex columns too, maintaining the complex structure.

Please let me know your valid inputs about the same.
Following is the link to the design document.

https://docs.google.com/document/d/1DhhkVXM8rMvOuKDZeccJpFEfO3VkA9C0c7JHCV88NXI/edit

Thanks,
Akshay

[Indhumathi]

+1, to support change datatype within the complex column.

Consider all complex types, (Array/Struct/Map) for this scenario.

Regards,
Indhumathi

[Shreelekhya]

+1 for the feature

Regards,
Shreelekhya

[Nihal]

+1, good to support datatype altering for complex.

Regards
Nihal kumar ojha

[akashrn5]

Hi,

+1 for the feature. Much needed one.

I have some suggestions for the design document.
As of now its more of a flow diagram document. can you please update the doc like what happens in loading part, query part and list all the impacted areas and list the test cases which will make the document more clear and easy for development.

You can refer to column rename document or any existing design documents for reference.


Regards,
Akash

[kunalkapoor]

+1

Thanks
Kunal Kapoor