We are still in the early stages of defining such APIs. See https://github.com/apache/arrow/tree/master/cpp/src/arrow/compute
where this code is being written. We would be glad of any additional work or input on the design for the computation APIs - Wes On Tue, Jan 2, 2018 at 10:43 AM, Jin Hai <mildwolf...@sina.com> wrote: > > Cool, do you have any idea how to implement the function in Arrow? Such as > create a JIRA ticket and describe the idea? > >> On 2 Jan 2018, at 11:37 PM, Wes McKinney <wesmck...@gmail.com> wrote: >> >> >> Hi Jin, >> >> If you are reading Parquet files, you can look at the column >> statistics for a row group using the C++ API. We definitely plan to >> implement functions to compute reduction-based statistics like minimum >> and maximum from data already in an Arrow array in C++, but it has not >> been implemented yet. >> >> - Wes >> >> On Sun, Dec 24, 2017 at 3:48 AM, Jin Hai <mildwolf...@sina.com> wrote: >>> >>> Hi, >>> I am going to check the arrow array data range, if the range doesn’t >>> include my data, I will scan it any more. Do we have such way to get this >>> kind of data? >>> >>> Thanks >>> >>> Best Regards >>> Jin Hai >>> >>> >> >> > >
