public ColumnInfo extractDerivingColumnInfo() {
final SqlClause subQuerySqlClause = _derivedReferrer.getSubQuerySqlClause();
final ColumnInfo columnInfo = subQuerySqlClause.getSpecifiedColumnInfoAsOne();
if (columnInfo != null) {
return columnInfo;
}
return subQuerySqlClause.getSpecifiedDerivingColumnInfoAsOne(); // nested
}
// ===================================================================================
// Meta Provider
// =============
public HpSpecifiedColumn extractDerivingColumn() {
final SqlClause subQuerySqlClause = _derivedReferrer.getSubQuerySqlClause();
final HpSpecifiedColumn specifiedColumn = subQuerySqlClause.getSpecifiedColumnAsOne();
if (specifiedColumn != null) {
return specifiedColumn;
}
return subQuerySqlClause.getSpecifiedDerivingColumnAsOne(); // nested
}