[
https://issues.apache.org/jira/browse/BEAM-13081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Beam JIRA Bot updated BEAM-13081:
---------------------------------
Labels: stale-assigned (was: )
> Portable representation of "packed bitset indicating null fields" in beam Row
> format is not compatible with jvm representations
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: BEAM-13081
> URL: https://issues.apache.org/jira/browse/BEAM-13081
> Project: Beam
> Issue Type: Bug
> Components: cross-language
> Reporter: Steve Niemitz
> Assignee: Brian Hulette
> Priority: P2
> Labels: stale-assigned
> Time Spent: 6h 10m
> Remaining Estimate: 0h
>
> The JVM RowCoder strips trailing 0s from the null-value bitmap, while both
> python and go expect all bits to be present in the encoded bitmap. This
> causes index-out-of-range errors when trying to decode a row encoded on the
> JVM in other languages in some circumstances.
> For example, given a Row with 10 nullable fields, if the first 8 are null and
> the last two are set, the row will fail to decode in python, because the
> nullable bitmap will only have 1 byte, but the python coder expects 2.
> As discussed in the thread, the best solution here is probably to change the
> python (and go) coders to accept truncated nullable bitmaps.
>
> More discussion here:
> [https://lists.apache.org/thread.html/r2f148e29902bda8bb0ff7106fffb8a5494295450827ad7fd17289383%40%3Cdev.beam.apache.org%3E]
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
