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https://issues.apache.org/jira/browse/PARQUET-415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15068891#comment-15068891
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Ryan Blue commented on PARQUET-415:
-----------------------------------
Fixed in PR #305. Luckily, no other Binary classes failed the new serialization
test.
> ByteBufferBackedBinary serialization is broken
> ----------------------------------------------
>
> Key: PARQUET-415
> URL: https://issues.apache.org/jira/browse/PARQUET-415
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Affects Versions: 1.8.1
> Reporter: Ryan Blue
> Assignee: Ryan Blue
> Priority: Blocker
> Fix For: 1.9.0
>
>
> While working on logical types for parquet-avro, I updated the
> {{FromStringBinary}} to work with a {{CharSequence}} instead of a {{String}},
> which broke {{TestFilterApiMethods#testSerializable}}. The underlying problem
> is that when the buffer-backed binary is deserialized, {{length}} and
> {{offset}} are not initialized so the buffer is correct but the apparent
> length of the binary is 0.
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