My Project
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Public Member Functions | |
QUICK_GROUP_MIN_MAX_SELECT (TABLE *table, JOIN *join, bool have_min, bool have_max, bool have_agg_distinct, KEY_PART_INFO *min_max_arg_part, uint group_prefix_len, uint group_key_parts, uint used_key_parts, KEY *index_info, uint use_index, double read_cost, ha_rows records, uint key_infix_len, uchar *key_infix, MEM_ROOT *parent_alloc, bool is_index_scan) | |
bool | add_range (SEL_ARG *sel_range) |
void | update_key_stat () |
void | adjust_prefix_ranges () |
bool | alloc_buffers () |
int | init () |
void | need_sorted_output () |
int | reset () |
int | get_next () |
bool | reverse_sorted () const |
bool | reverse_sort_possible () const |
bool | unique_key_range () |
int | get_type () |
void | add_keys_and_lengths (String *key_names, String *used_lengths) |
void | dbug_dump (int indent, bool verbose) |
bool | is_agg_distinct () |
virtual void | append_loose_scan_type (String *str) |
Public Attributes | |
MEM_ROOT | alloc |
QUICK_RANGE_SELECT * | quick_prefix_select |
bool QUICK_GROUP_MIN_MAX_SELECT::reverse_sort_possible | ( | ) | const [inline, virtual] |
Whether the range access method is capable of returning records in reverse order.
Implements QUICK_SELECT_I.
bool QUICK_GROUP_MIN_MAX_SELECT::reverse_sorted | ( | ) | const [inline, virtual] |
Whether the range access method returns records in reverse order.
Implements QUICK_SELECT_I.