Incorrect reading of nullable Blob/Clob columns during soft upgrade with
client/server
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Key: DERBY-2923
URL: https://issues.apache.org/jira/browse/DERBY-2923
Project: Derby
Issue Type: Bug
Components: Network Server
Affects Versions: 10.3.0.0, 10.3.1.0, 10.3.1.1
Environment: Client/server soft upgrade
Reporter: Øystein Grøvlen
Assignee: Øystein Grøvlen
Priority: Blocker
Fix For: 10.3.1.1
Select operations with client/server and soft upgrade mode will not see first
byte of the Blob/Clob if the LOB column is nullable.
The reason seems to be that during soft upgrade, the network server does not
prepend the LOB data with the byte indicating whether the column is null or
not. Hence, the first data byte will be interpreted by the client as the null
byte, and the reading of the LOB will start at the second byte.
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