private static String getFunction(Selection column, DatabaseMeta databaseMeta) {
String fn = ""; // $NON-NLS-1$
switch (column.getActiveAggregationType()) {
case AVERAGE:
fn = databaseMeta.getFunctionAverage();
break;
case COUNT_DISTINCT:
case COUNT:
fn = databaseMeta.getFunctionCount();
break;
case MAXIMUM:
fn = databaseMeta.getFunctionMaximum();
break;
case MINIMUM:
fn = databaseMeta.getFunctionMinimum();
break;
case SUM:
fn = databaseMeta.getFunctionSum();
break;
default:
break;
}
return fn;
}
// This method is for backwards compatibility of already defined
// isExact formulas that may contain at the root an aggregate function.
private static boolean hasAggregateDefinedAlready(String sql, DatabaseMeta databaseMeta) {
String trimmed = sql.trim();
return trimmed.startsWith(databaseMeta.getFunctionAverage() + "(")
|| //$NON-NLS-1$
trimmed.startsWith(databaseMeta.getFunctionCount() + "(")
|| //$NON-NLS-1$
trimmed.startsWith(databaseMeta.getFunctionMaximum() + "(")
|| //$NON-NLS-1$
trimmed.startsWith(databaseMeta.getFunctionMinimum() + "(")
|| //$NON-NLS-1$
trimmed.startsWith(databaseMeta.getFunctionSum() + "("); // $NON-NLS-1$
}
