ramesh0201 opened a new pull request, #5308:
URL: https://github.com/apache/hive/pull/5308
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### What changes were proposed in this pull request?
Queries with function expression throw error as their ObjectInspector is not
initialized. As part of prepare execute execute workflow, we serialize and
deserialize plan during execute analyzer. During this step,
ExprNodeGenericFuncDesc's ObjectInspector field is not initialized as it is a
transient field and is never part of the serialized byte array. Assuming it can
be null, we try to populate the field when required.
### Why are the changes needed?
To make any queries with function expression work as part of the prepare
execute workflow.
### Does this PR introduce _any_ user-facing change?
No
### Is the change a dependency upgrade?
No
### How was this patch tested?
mvn test -Dtest=TestMiniLlapLocalCliDriver -Dqfile=prepare_plan_func_expr.q
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