diff options
Diffstat (limited to 'sql/opt_subselect.h')
| -rw-r--r-- | sql/opt_subselect.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sql/opt_subselect.h b/sql/opt_subselect.h index 2b9031b1b81..395ceb86b2e 100644 --- a/sql/opt_subselect.h +++ b/sql/opt_subselect.h @@ -88,6 +88,7 @@ class Loose_scan_opt KEYUSE *best_loose_scan_start_key; uint best_max_loose_keypart; + table_map best_ref_depend_map; public: Loose_scan_opt(): @@ -249,13 +250,14 @@ public: best_loose_scan_records= records; best_max_loose_keypart= max_loose_keypart; best_loose_scan_start_key= start_key; + best_ref_depend_map= 0; } } } } void check_ref_access_part2(uint key, KEYUSE *start_key, double records, - double read_time) + double read_time, table_map ref_depend_map_arg) { if (part1_conds_met && read_time < best_loose_scan_cost) { @@ -265,6 +267,7 @@ public: best_loose_scan_records= records; best_max_loose_keypart= max_loose_keypart; best_loose_scan_start_key= start_key; + best_ref_depend_map= ref_depend_map_arg; } } @@ -280,6 +283,7 @@ public: best_loose_scan_records= rows2double(quick->records); best_max_loose_keypart= quick_max_loose_keypart; best_loose_scan_start_key= NULL; + best_ref_depend_map= 0; } } @@ -295,7 +299,7 @@ public: pos->loosescan_picker.loosescan_parts= best_max_loose_keypart + 1; pos->use_join_buffer= FALSE; pos->table= tab; - // todo need ref_depend_map ? + pos->ref_depend_map= best_ref_depend_map; DBUG_PRINT("info", ("Produced a LooseScan plan, key %s, %s", tab->table->key_info[best_loose_scan_key].name.str, best_loose_scan_start_key? "(ref access)": |