PostgreSQL error when getObject()

[zedomel]

There is syntax error in file AbstractDenseJDBCMatrix2D.java:

java String sql = sqlStatement + " LIMIT ?,?";

Postgres does not accept LIMIT #,# syntax and LIMIT # OFFSET must be used. An option is to overload the method getObject() in DensePostgreSQLMatrix2D.java to use the right syntax but the fields of AbstractDenseJDBCMatrix2D.java should be changed to protected to allow DensePostgreSQLMatrix2D.java access them.
I can provide pull request, just finishing the changes.

thanks.