column_filter.h

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#ifndef CS_COLUMN_FILTER_H
#define CS_COLUMN_FILTER_H
 
#include "sql/sql_class.h"
 
namespace cs {
namespace util {
/**
  @class ColumnFilter
 
  When iterating the table fields for sometimes you want to skip some columns.
  Such a case is the filtering of GIPK or functional indexes when replicating
  a table.
 
  Classes that inherit this class shall also implement the method
 
    static bool is_filter_needed(THD const *thd, TABLE *table,
                                 table_def const *tabledef);
 
  It allows for the conditional addition of the filter only when it makes sense
 */
class ColumnFilter {
 public:
  virtual ~ColumnFilter() = default;
  virtual bool filter_column(TABLE const *table, size_t column_index) = 0;
};
}  // namespace util
}  // namespace cs
#endif  // CS_COLUMN_FILTER_H