[ http://issues.apache.org/jira/browse/DERBY-562?page=all ]
Sunitha Kambhampati updated DERBY-562:
--------------------------------------
Attachment: Derby562.stat.txt
> Derby incorrectly throws Exception when streaming to BLOB field
> ---------------------------------------------------------------
>
> Key: DERBY-562
> URL: http://issues.apache.org/jira/browse/DERBY-562
> Project: Derby
> Type: Bug
> Versions: 10.1.1.0
> Reporter: Holger Rehn
> Attachments: Derby562.diff.txt, Derby562.stat.txt
>
> Derby incorrectly throws an Exception when streaming to a BLOB in case the
> used InputStream actually could provide more data than I want to write to the
> BLOB field.
> PreparedStatement statement = connection.prepareStatement( "insert into
> FOO(ID,DATA) values(?, ?)" );
> statement.setLong( 1, someValue );
> statement.setBinaryStream( 2, someInputStream, amountOfData ); //
> amountOfData < amount of data readable from someInputStream
> statement.executeUpdate();
> executeUpdate() throws an SQLException with detail message: "Input stream
> held less data than requested length.: java.io.IOException"
> In my case this was first caused by writing an internal buffer (byte[]) to
> the data base through a ByteArrayInputStream while not limiting the
> ByteArrayInputStream to the useful data within the buffer but setting
> amountOfData to the number of useful bytes. So the 2 problems are:
> 1. the error text is definitly incorrect since I provide more data than
> neccessary, not less
> 2. in my opinion this shouldn't throw an exception at all (I checked against
> 4 other DBMS, all of them worked as intended)
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