Chao Sun created HIVE-26220:
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Summary: Shade & relocate dependencies in hive-exec to avoid
conflicting with downstream projects
Key: HIVE-26220
URL: https://issues.apache.org/jira/browse/HIVE-26220
Project: Hive
Issue Type: Improvement
Affects Versions: 4.0.0
Reporter: Chao Sun
Currently projects like Spark, Trino/Presto, Iceberg, etc, are depending on
{{hive-exec:core}} which was removed in HIVE-25531. The reason these projects
use {{hive-exec:core}} is because they have the flexibility to exclude, shade &
relocate dependencies in {{hive-exec}} that conflict with the ones they brought
in by themselves. However, with {{hive-exec}} this is no longer possible, since
it is a fat jar that shade those dependencies but do not relocate many of them.
In order for the downstream projects to consume {{hive-exec}}, we will need to
make sure all the dependencies in {{hive-exec}} are properly shaded and
relocated, so they won't cause conflicts with those from the downstream.
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