Ildar created ARROW-4293: ---------------------------- Summary: [C++] Can't access parquet statistics on binary columns Key: ARROW-4293 URL: https://issues.apache.org/jira/browse/ARROW-4293 Project: Apache Arrow Issue Type: Bug Reporter: Ildar
Hi, I'm trying to use per-column statistics (min/max values) to filter out row groups while reading parquet file. But I don't see statistics built for binary columns. I noticed that {{ApplicationVersion::HasCorrectStatistics()}} discards statistics that have sort order {{UNSIGNED }}and haven't been created by {{parquet-cpp}}. As I understand there used to be some issues in {{parquet-mr}} before. But do they still persist? For example, I have parquet file created with {{parquet-mr}} version 1.10, it seems to have correct min/max values for binary columns. And {{parquet-cpp}} works fine for me if I remove this code from {{HasCorrectStatistics()}} func: {{ if (SortOrder::SIGNED != sort_order && !max_equals_min) {}} {{ return false; }}} -- This message was sent by Atlassian JIRA (v7.6.3#76005)