Quelle  opt_group_by_cardinality.h   Sprache: C

#ifndef OPT_GROUP_BY_CARDINALITY
#define OPT_GROUP_BY_CARDINALITY


double estimate_post_group_cardinality(JOIN *join, double join_output_card);

void infer_derived_key_statistics(st_select_lex_unit* derived,
                                  KEY *keyinfo,
                                  uint key_parts);

#endif