problems with getImportedKeys method

Hello,

When I execute method getImportedKeys:

ResultSet rs =
databaseMetaData.getImportedKeys(null,null,(String)tableName);

An exception occure:

java.sql.SQLException: ERROR: Unable to identify an ordering operator '<'
for type 'bytea'
Use an explicit ordering operator or modify the query

I use org.postgresql.Driver as a driver for PostgreSQL 7.0.1 database
running in HP-UX envirement.

How can I solve this problem ?


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