Can you elaborate more about this? How can I use shared_ptr<Buffer> as a buffer in array?
On Wed, 9 Oct 2024 at 16:50, Felipe Oliveira Carvalho <felipe...@gmail.com> wrote: > You would have to use a std::shared_ptr<Buffer> as a buffer in one of the > array layouts in a manner that’s compatible with the type. > > On Wed, 9 Oct 2024 at 12:41 Yi Cao <cao.yi.s...@gmail.com> wrote: > >> Hi, >> I want to store pointers to avoid copy of large amount of data. And then >> I can pass such table and extract pointers from the column and access >> object it points to. >> >> Thanks >> >> On Wed, 9 Oct 2024 at 13:14, Xiufeng Huang <xfhua...@gmail.com> wrote: >> >>> I think arrow structures are supposed to hold data. Why would you want >>> to store pointers in arrow structures any way? >>> >>> On Wed, Oct 9, 2024 at 3:29 PM Yi Cao <cao.yi.s...@gmail.com> wrote: >>> >>>> Hi Arrow community, >>>> Need some advice here! >>>> >>>> Our C++ application processes tabular data and Apache Arrow looks >>>> promising in our case. I try to implement the scenario below in c++ arrow >>>> however, cannot find a solution or a similar example. Could anyone please >>>> share your thoughts ? >>>> >>>> Say here is a table of three columns. First column is int type and the >>>> second column is string type. For the third column, we would like to store >>>> std::shared_ptr so that only the shared pointer is copied but no copy of >>>> large data it pointes to. >>>> >>>> I have read source code of extension type and a few examples like UUID >>>> and fixed tensor type. However, I'm still not sure how to implement the >>>> above case where an array of shared_ptr is stored in arrow::RecordBatch or >>>> arrow::Table. >>>> >>>> Is it possible and can any example be provided ? >>>> >>>> Thank you and best regards. >>>> >>>> >>>> >>>> >>>> >>> >>> >> >> > >
