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My Project
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My Project
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Public Types | |
| enum | { QS_TYPE_RANGE = 0, QS_TYPE_INDEX_MERGE = 1, QS_TYPE_RANGE_DESC = 2, QS_TYPE_FULLTEXT = 3, QS_TYPE_ROR_INTERSECT = 4, QS_TYPE_ROR_UNION = 5, QS_TYPE_GROUP_MIN_MAX = 6 } |
Public Member Functions | |
| virtual int | init ()=0 |
| virtual int | reset (void)=0 |
| virtual int | get_next ()=0 |
| virtual void | range_end () |
| virtual bool | reverse_sorted () const =0 |
| virtual bool | reverse_sort_possible () const =0 |
| virtual bool | unique_key_range () |
| virtual bool | clustered_pk_range () |
| virtual void | need_sorted_output ()=0 |
| virtual int | get_type ()=0 |
| virtual int | init_ror_merged_scan (bool reuse_handler) |
| virtual void | save_last_pos () |
| virtual void | add_keys_and_lengths (String *key_names, String *used_lengths)=0 |
| virtual void | add_info_string (String *str) |
| virtual bool | is_keys_used (const MY_BITMAP *fields) |
| virtual bool | is_valid () |
| virtual void | dbug_dump (int indent, bool verbose)=0 |
| virtual QUICK_SELECT_I * | make_reverse (uint used_key_parts_arg) |
| virtual void | set_handler (handler *file_arg) |
Public Attributes | |
| ha_rows | records |
| double | read_time |
| TABLE * | head |
| uint | index |
| uint | max_used_key_length |
| uint | used_key_parts |
| uchar * | last_rowid |
| uchar * | record |
| virtual bool QUICK_SELECT_I::is_valid | ( | ) | [inline, virtual] |
Simple sanity check that the quick select has been set up correctly. Function is overridden by quick selects that merge indices.
Reimplemented in QUICK_ROR_UNION_SELECT, QUICK_ROR_INTERSECT_SELECT, and QUICK_INDEX_MERGE_SELECT.
| virtual bool QUICK_SELECT_I::reverse_sort_possible | ( | ) | const [pure virtual] |
Whether the range access method is capable of returning records in reverse order.
Implemented in QUICK_SELECT_DESC, QUICK_GROUP_MIN_MAX_SELECT, QUICK_ROR_UNION_SELECT, QUICK_ROR_INTERSECT_SELECT, QUICK_INDEX_MERGE_SELECT, and QUICK_RANGE_SELECT.
| virtual bool QUICK_SELECT_I::reverse_sorted | ( | ) | const [pure virtual] |
Whether the range access method returns records in reverse order.
Implemented in QUICK_SELECT_DESC, QUICK_GROUP_MIN_MAX_SELECT, QUICK_ROR_UNION_SELECT, QUICK_ROR_INTERSECT_SELECT, QUICK_INDEX_MERGE_SELECT, and QUICK_RANGE_SELECT.
1.7.6.1
