Noah Horton created ARROW-18161: ----------------------------------- Summary: Reading error table causes mutations Key: ARROW-18161 URL: https://issues.apache.org/jira/browse/ARROW-18161 Project: Apache Arrow Issue Type: Bug Components: Ruby Affects Versions: 9.0.0 Environment: Ruby 3.1.2 Reporter: Noah Horton
ven an Arrow::Table with several columns "X" {code:ruby} # Rails console outputs 3.1.2 :107 > x.schema => #<Arrow::Schema:0x7ff2fbc426d8 ptr=0x55851587bc20 actual_values: int64 dates: date32[day] expected_values: double> 3.1.2 :108 > x.schema => #<Arrow::Schema:0x7ff2fbbcda68 ptr=0x55851a541020 actual_values: int64 dates: date32[day] expected_values: double> 3.1.2 :109 > {code} Note that the object and pointer have both changed values. But the far bigger issue is that repeated reads from it will cause different results: {code:ruby} 3.1.2 :097 > x[1][0] => Sun, 22 Aug 2021 3.1.2 :098 > x[1][1] => nil 3.1.2 :099 > x[1][0] => nil {code} I have a lot of things hitting like this - when I have done those accesses, I get the originally table with the columns all shuffled around. I do ingest the data slightly oddly in the first place as it comes in over GRPC and I am using Arrow::Buffer to read it from the GRPC and then passing that into Arrow::Table.load. But I would not expect that once it was in Arrow::Table that I could do anything to permute it unintentionally. -- This message was sent by Atlassian Jira (v8.20.10#820010)