No, struct array is not naturally castable to map. It's not something that
can be done zero-copy and I don't think anyone has encountered this need
before. Let me make sure I understand.
The goal is to go from a type of STRUCT,
where every key in the struct has the same type, to a MAP, where
eac
Hi Alenka,
Great! Thank you so much for your inputs.
I have indeed tried to use schema when creating a table from a pylist and
it worked but in my use case, I wouldn't know the table schema beforehand
especially for the other columns - I need to do transformations before I
can cast it to the exp
Hi Alex,
passing the schema to from_pylist() method on the Table should work for
your example (not sure if it solves your initial problem?)
import pyarrow as pa
table_schema = pa.schema([pa.field("id", pa.int32()),
pa.field("names", pa.map_(pa.string(), pa.string()))])
table_data = [{"id": 1,"n
Any inputs on this please?
On Tue, May 2, 2023 at 10:03 AM Jerald Alex wrote:
> Hi Experts,
>
> Can anyone please highlight if it is possible to cast struct to map type?
>
> I tried the following but it seems to be producing an error as below.
>
> pyarrow.lib.ArrowNotImplementedError: Unsupport
