"ADD action is not supported for the type L" about dynalite

[mhart]

That's correct, you can't perform an ADD on to a list type – only numbers and set types.

[mhart]

You can use the list_append function in the UpdateExpression to achieve this if you want though: http://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_UpdateItem.html#DDB-UpdateItem-request-UpdateExpression

[adrianpraja]

any plans to support it in the future ?
AWS do support it !

[adrianpraja]

UpdateExpression should do it!

[mhart]

Huh, I just checked and you're right – the documentation only says it supports numbers and sets, but when I try it on DynamoDB it seems to work. I'll update it so that ADD works with type L (and I assume DELETE too)

[mhart]

OK, so I've updated it so that ADD works with L types – just as it does on the live DynamoDB instances.

Thanks for finding this, I had no idea this was supported!