Re: Is there any way to get data of numeric array like maximum/minimum value?

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

Re: Is there any way to get data of numeric array like maximum/minimum value?

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 wrote: > > > Hi Jin, > > If you are reading Parquet files, you can look at the column > statistics for a row

Re: Is there any way to get data of numeric array like maximum/minimum value?

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

Is there any way to get data of numeric array like maximum/minimum value?

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