SQLChar.getLength returns wrong length for some data values
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Key: DERBY-4040
URL: https://issues.apache.org/jira/browse/DERBY-4040
Project: Derby
Issue Type: Bug
Components: SQL
Affects Versions: 10.4.2.0, 10.3.3.1, 10.5.0.0
Reporter: Kristian Waagan
Assignee: Kristian Waagan
SQLChar.getLength() returns the wrong length of the data value in some cases.
For the bug to be triggered, the value must contain characters that are
represented by two or three bytes, and Derby must store the value as a stream.
In my ad-hoc testing, I found that a value of length 10886 with CJK characters
doesn't trigger the bug, but 10887 does trigger the bug. Further, for a range
of lengths the bug can also been observed for CLOB columns (when doing 'select
length(clobcolumn)').
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