Inconsistent behavior for getBytes and getSubString for embedded versus network
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Key: DERBY-1516
URL: http://issues.apache.org/jira/browse/DERBY-1516
Project: Derby
Issue Type: Bug
Reporter: Craig Russell
Priority: Minor
org.apache.derby.client.am.Clob.getSubString(pos, length) and
org.apache.derby.client.am.Blob.getBytes(pos, length) check the length for less
than zero.
if ((pos <= 0) || (length < 0)) {
throw new SqlException(agent_.logWriter_, "Invalid position " +
pos + " or length " + length);
But org.apache.derby.impl.jdbc.EmbedClob(pos, length) and
org.apache.derby.impl.jdbc.EmbedBlob(pos, length) check the length for less
than or equal to zero.
if (length <= 0)
throw Util.generateCsSQLException(
SQLState.BLOB_NONPOSITIVE_LENGTH, new Integer(length));
The specification does not disallow length of zero, so zero length should be
allowed. I believe that the implementation in org.apache.derby.client.am is
correct, and the implementation in org.apache.derby.impl.jdbc is incorrect.
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