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https://issues.apache.org/jira/browse/DERBY-7113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17325107#comment-17325107
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Richard N. Hillegas commented on DERBY-7113:
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The DRDA error message isn't very helpful. There might be some interesting
diagnostic information in the server-side derby.log file--provided that the
diagnostic logging level has been set high enough. That information might help
you identify the corrupt index.
At this point, I have no confidence in the integrity of your database. The
problem may be as simple as not disabling file system write-caching. That would
be an interesting question to ask the database administrator.
> Index has value of column which no longer exists in the table
> -------------------------------------------------------------
>
> Key: DERBY-7113
> URL: https://issues.apache.org/jira/browse/DERBY-7113
> Project: Derby
> Issue Type: Bug
> Components: Network Server
> Affects Versions: 10.8.3.0
> Environment: Linux with Java 8 - 8.0.6.25
> Reporter: Geraldine
> Priority: Critical
>
> From time to time an Index keeps a value, which has been deleted from the
> underlying table.
> This results in an error is the row with the value is selected.
> _SELECT ID from Some.TABLE WHERE IndexedColumn= 'Remembered Value';_
> _ID_
> _--------------------_
> _1680880176_
> _ERROR 0A000: The DRDA command parseSQLDIAGSTT is not currently implemented.
> The connection has been terminated._
> If only the Indexed Column is selected, then the Query returns 0 rows and
> produces no error - because just the index is searched.
> The Query Plan shows the index being used.
> Dropping and Recreating the index fixes the issue. However, I can reproduce
> this by reloading a database backup.
>
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