[DERBY-1098] isDefinitelyWritable on client returns true where embedded returns false

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 10.2.1.6
• Component/s: JDBC, Network Client
• Labels: derby_triage10_8
• Environment: Solaris 10/x86, Sun Java 1.4.2
• Urgency: Low
• Bug behavior facts: Embedded/Client difference
• Assignee: Unassigned
• Reporter: Dag H. Wanvik
• Created: 11/Mar/06 02:30
• Updated: 16/Feb/11 14:39

Description

ResultSetMetaData#isDefinitelyWritable on the client does the same test
as isWritable.

The embedded driver is more pessimistic, and always returns false.
The comment is the embedded code says:

// we just don't know if it is a base table column or not

For the present implementation of updatable result set (forward only), under
which conditions would the update fail? Or is the client correct correct here?

Issue Links

• is part of: DERBY-310 Document and/or change Derby client code to match behavior with Embedded driver where possible.