PositionedStoreStream doesn't initialize itself properly
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Key: DERBY-3970
URL: https://issues.apache.org/jira/browse/DERBY-3970
Project: Derby
Issue Type: Bug
Components: JDBC
Affects Versions: 10.4.2.0, 10.3.3.0
Reporter: Kristian Waagan
Assignee: Kristian Waagan
Priority: Minor
When a PositionedStoreStream is created on top of a stream from store, it must
properly initialize itself.
Proper initialization consists of initializing and resetting the stream to make
sure the states of the streams are in sync.
A case of out of sync stream states was detected in a test where the Clob
reference wasn't kept, but a new Clob object was created for each operation,
i.e:
rs.getClob(1).length();
rs.getClob(1).getSubString(...);
A symptom of out of sync stream states is EOFException on a valid request.
I don't think the access style above is supposed to work, but the proper
initialization should be performed anyway.
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