Michał Węgrzyn created HIVE-11501:
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Summary: HiveConnection.readOnly always throws a "Method not
supported" exception
Key: HIVE-11501
URL: https://issues.apache.org/jira/browse/HIVE-11501
Project: Hive
Issue Type: Bug
Reporter: Michał Węgrzyn
Assignee: Michał Węgrzyn
HiveConnection.setReadOnly's automatically generated implementation always
throws a generic "Method not supported" exception and thus is not compliant
with the JDBC spec. Per JDBC spec, an exception can be thrown only if the
connection is closed, DB access error occurs or the method is called during a
transaction (which is not a case for HiveConnection).
JDBC spec does not say a word about not supporting the method by the driver.
The most correct behavior could be to throw only if the request tries to enable
the read-only mode (as HiveConnection.isReadOnly always returns false).
This issue is a blocker for JDBC connection pools (i.e. HikariCP) that expect
JDBC-compliant behavior from the driver.
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