Jesus Camacho Rodriguez created HIVE-13861:
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Summary: Fix up nullability issue that might be created by pull up
constants rules
Key: HIVE-13861
URL: https://issues.apache.org/jira/browse/HIVE-13861
Project: Hive
Issue Type: Bug
Components: CBO
Affects Versions: 2.1.0
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
When we pull up constants through Union or Sort operators, we might end up
rewriting the original expression into an expression whose schema has different
nullability properties for some of its columns.
This results in AssertionError of the following kind:
{noformat}
...
org.apache.hive.service.cli.HiveSQLException: Error running query:
java.lang.AssertionError: Internal error: Cannot add expression of different
type to set:
...
{noformat}
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