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Unexpected zero rows returned from Connection.getMetaData().getColumns() call using Hive JDBC driver

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TitleUnexpected zero rows returned from Connection.getMetaData().getColumns() call using Hive JDBC driver
URL Nameunexpected-zero-rows-returned-from-connection-getmetadata-getcolumns-call-using-hive-jdbc-driver
Article Number000174154
EnvironmentProduct: Progress DataDirect for JDBC for Apache Hive Driver
Version : 6.0.1.000139
OS: JAVA
Database : Hive
Application: All supported applications
Question/Problem Description

When making the following function call, Connection.getMetaData().getColumns(), using the Hive JDBC Driver (6.0.1.000139) against Hive database server 3.1.x, it returned 0 rows.
But when the same function was called using the release version of the driver (6.0.1.000081), correct number of rows were returned.
Steps to Reproduce
Clarifying Information
Error Message(MetaException(message:java.lang.UnsupportedOperationException: Storage schema reading not supported)
Defect Number
Enhancement Number
Cause
Snoop logs shows the following error when getColumns() method was called:
(MetaException(message:java.lang.UnsupportedOperationException: Storage schema reading not supported)
Resolution

In the hive_site.xml, set the following and restart the Hive database server:

metastore.storage.schema.reader.impl=org.apache.hadoop.hive.metastore.SerDeStorageSchemaReader​

Workaround
Set the following connection parameter "CatalogMode=query" in the connection URL to have the driver build (6.0.1.000139) to behave the same as the driver build (6.0.1.000081).
But the performance will be slower.
To get improved performance for getting this metadata, use the resolution given above.
Notes
Last Modified Date1/28/2020 11:01 PM
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