C++ (Cpp) NAColumn::isPartitioningKeyの例

コード例 #1

// is this BaseColumn a primary or partitioning key and is val a single 
// value or a constant that can be safely coerced to BaseColumn's type?
NABoolean BaseColumn::isKeyColumnValue(ItemExpr& val) const
{
  NAColumn *baseCol = getNAColumn();
  return
    (baseCol != NULL &&
     (baseCol->isPrimaryKey() || baseCol->isPartitioningKey()) &&
     canSafelyCoerce(val));
}