Improvements in prepared statements

[Alejandro Sánchez]

Hello, some improvements in the prepared statements would facilitate
their use from applications:

- Use of table and column names in prepared statements.

    Example: select # from # where # = ?;

- Use of arrays in prepared statements.

    Example: select # from article where id in (?);

        # = author,title
        ? = 10,24,45

Best regards.
Alejandro Sánchez.