Pierre Belzile created ARROW-8657: ------------------------------------- Summary: Distinguish parquet version 2 logical type vs DataPageV2 Key: ARROW-8657 URL: https://issues.apache.org/jira/browse/ARROW-8657 Project: Apache Arrow Issue Type: Bug Components: C++, Python Affects Versions: 0.17.0 Reporter: Pierre Belzile
With the recent release of 0.17, the ParquetVersion is used to define the logical type interpretation of fields and the selection of the DataPage format. As a result all parquet files that were created with ParquetVersion::V2 to get features such as unsigned int32s, timestamps with nanosecond resolution, etc are now unreadable. That's TBs of data in my case. Those two concerns should be separated. Given that that DataPageV2 pages were not written prior to 0.17 and in order to allow reading existing files, the existing version property should continue to operate as in 0.16 and inform the logical type mapping. Some consideration should be given to issue a release 0.17.1. -- This message was sent by Atlassian Jira (v8.3.4#803005)