Re: modeling column group

2023-01-01 Thread Yue Ni
Thanks so much Weston. Both [1][2] are informative, and I will check them out. Thanks. On Mon, Jan 2, 2023 at 5:05 AM Weston Pace wrote: > There was a discussion a while back about representing complex numbers > that seems similar[1]. If both fields were the same type you could > use a fixed si

Re: [DISCUSS] Python Wheel Size

2023-01-01 Thread Weston Steimel
Apologies for being very late to this discussion, but if anyone is still interested in this work, I did quite long ago attempt something like this at https://github.com/westonsteimel/pyarrow-parquet. Eventually I gave up on that approach (due to the time taken for builds etc) and instead moved to

Re: modeling column group

2023-01-01 Thread Weston Pace
There was a discussion a while back about representing complex numbers that seems similar[1]. If both fields were the same type you could use a fixed size list array. However, since you want two different types you'd want some kind of "packed struct" which does not exist (to my knowledge) today.

modeling column group

2023-01-01 Thread Yue Ni
Hi there, Happy new year. I store some data in arrow IPC files. And I have two fields that are always accessed at the same time, namely, when accessing these two fields, they are accessed in a row oriented manner and are always fetched together, but other fields are accessed in columnar manner. O