* @param allowedPKs map of allowed rows, based on the primary keys (key is the name
* of a table; value is a Set with allowed primary keys for that table)
*/
public ImportedAndExportedKeysSearchCallbackFilteredByPKs(IDatabaseConnection connection, Map allowedPKs) {
super(connection);
this.pksFilter = new PrimaryKeyFilter(connection, allowedPKs, true );
}