}
Database db = session.getDatabase();
StatementBuilder buff = new StatementBuilder("SELECT ");
Column[] columns = table.getColumns();
for (Column col : columns) {
buff.appendExceptFirst(", ");
buff.append("SELECTIVITY(").append(col.getSQL()).append(')');
}
buff.append(" FROM ").append(table.getSQL());
if (sample > 0) {
buff.append(" LIMIT 1 SAMPLE_SIZE ").append(sample);