Andrew Olson created HIVE-18087:
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Summary: Simple select query finds nothing when non-native table
has partition columns
Key: HIVE-18087
URL: https://issues.apache.org/jira/browse/HIVE-18087
Project: Hive
Issue Type: Bug
Components: Query Processor
Environment: CDH 5.5.5 on RHEL 6.8
Reporter: Andrew Olson
A non-native table can be created with partition columns defined. However, the
existence of partition columns for a non-native table is problematic. Nothing
disallows the table creation, and the documentation [1] does not mention that
non-native tables cannot have partition columns. In fact, it suggests that
"PARTITIONED BY" can be specified.
With this table definition, when running a query that does not launch a MR job,
the query completes successfully and immediately, but no rows are ever
returned. I have not yet been able to identify the specific code logic path
that prevents it from working as expected, perhaps something in the query plan
related to partition pruning.
This bug is similar to HIVE-18086. We see this issue with a query like "select
* from my_table;" and the HIVE-18086 NullPointerException with a query like
"select count(*) from my_table;".
We encountered this bug using the HBaseStorageHandler. However, enabling debug
logging suggests that the query is being short-circuited without actually
connecting to HBase at all.
[1]
https://cwiki.apache.org/confluence/display/Hive/StorageHandlers#StorageHandlers-DDL
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