Signature | Description | Parameters |
---|---|---|
template<typename T> bool has_column(const char *name) const; |
Returns true if self has the named column, otherwise false |
T: Type of the named data column name: Name of the column |
template<typename T> bool has_column(std::size_t index) const; |
Returns true if self has the indexed column, otherwise false |
T: Type of the named data column index: Index of the column |