Alexander Behm created IMPALA-6627:
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Summary: Document Hive-incompatible behavior with the
serialization.null.format table property
Key: IMPALA-6627
URL: https://issues.apache.org/jira/browse/IMPALA-6627
Project: IMPALA
Issue Type: Improvement
Components: Docs
Reporter: Alexander Behm
Assignee: Alex Rodoni
Impala only respects the "serialization.null.format" table property for TEXT
tables and ignores it for Parquet and other formats.
Hive respects the "serialization.null.format" property even for other formats,
converting matching values to NULL during the scan.
There's is a separate discussion to be had about which behavior makes more
sense, but let's document this as an incompatibility for now since it has come
up several times already.
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