Ádám Szita created HIVE-26161:
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Summary: Use Hive's ORC dependency version when producing file
footer for Iceberg
Key: HIVE-26161
URL: https://issues.apache.org/jira/browse/HIVE-26161
Project: Hive
Issue Type: Bug
Reporter: Ádám Szita
Assignee: Ádám Szita
For schema evolution and projection purposes we produce an ORC file footer byte
buffer in VectorizedReadUtils.
Currently Iceberg's bundled/shaded ORC is used to produce these file footer
bytes when dealing with Iceberg/ORC tables. This version of ORC is newer
(1.7.3) than what Hive uses (1.6.9).
Later on we could face compatibility issues when trying to reconstruct an
OrcTail object with a 1.6.9 reader from the bytes that the 1.7.3 reader
serialized. We need to invert the direction as we can rely more on backward
compatibility than on forward compatibility of ORC.
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