index_merge_plan.h

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#ifndef SQL_RANGE_OPTIMIZER_INDEX_MERGE_PLAN_H_
#define SQL_RANGE_OPTIMIZER_INDEX_MERGE_PLAN_H_
 
template <class T>
class Mem_root_array;
class Opt_trace_object;
class RANGE_OPT_PARAM;
class String;
class THD;
struct AccessPath;
struct MEM_ROOT;
 
void trace_basic_info_index_merge(THD *thd, const AccessPath *path,
                                  const RANGE_OPT_PARAM *param,
                                  Opt_trace_object *trace_object);
 
void add_keys_and_lengths_index_merge(const AccessPath *path, String *key_names,
                                      String *used_lengths);
 
#ifndef NDEBUG
void dbug_dump_index_merge(int indent, bool verbose,
                           const Mem_root_array<AccessPath *> &children);
#endif
 
#endif  // SQL_RANGE_OPTIMIZER_INDEX_MERGE_PLAN_H_