diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 8688932a81e..a26f4b47340 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -3085,12 +3085,11 @@ make_join_statistics(JOIN *join, List<TABLE_LIST> &tables_list, key_map const_ref, eq_part; bool has_expensive_keyparts; TABLE **table_vector; - JOIN_TAB *stat,*stat_end,*s,**stat_ref; + JOIN_TAB *stat,*stat_end,*s,**stat_ref, **stat_vector; KEYUSE *keyuse,*start_keyuse; table_map outer_join=0; table_map no_rows_const_tables= 0; SARGABLE_PARAM *sargables= 0; - JOIN_TAB *stat_vector[MAX_TABLES+1]; List_iterator<TABLE_LIST> ti(tables_list); TABLE_LIST *tables; DBUG_ENTER("make_join_statistics"); @@ -3099,9 +3098,19 @@ make_join_statistics(JOIN *join, List<TABLE_LIST> &tables_list, table_count=join->table_count; stat=(JOIN_TAB*) join->thd->calloc(sizeof(JOIN_TAB)*(table_count)); - stat_ref=(JOIN_TAB**) join->thd->alloc(sizeof(JOIN_TAB*)*MAX_TABLES); + stat_ref=(JOIN_TAB**) join->thd->alloc(sizeof(JOIN_TAB*)* + (MAX_TABLES + table_count + 1)); + stat_vector= stat_ref + MAX_TABLES; table_vector=(TABLE**) join->thd->alloc(sizeof(TABLE*)*(table_count*2)); - if (!stat || !stat_ref || !table_vector) + join->positions= new (join->thd->mem_root) POSITION[(table_count+1)]; + /* + best_positions is ok to allocate with alloc() as we copy things to it with + memcpy() + */ + join->best_positions= (POSITION*) join->thd->alloc(sizeof(POSITION)* + (table_count +1)); + + if (join->thd->is_fatal_error) DBUG_RETURN(1); // Eom /* purecov: inspected */ join->best_ref=stat_vector; @@ -7634,7 +7643,7 @@ static bool create_ref_for_key(JOIN *join, JOIN_TAB *j, if (keyuse->null_rejecting) j->ref.null_rejecting |= 1 << i; keyuse_uses_no_tables= keyuse_uses_no_tables && !keyuse->used_tables; - if (!keyuse->used_tables && !thd->lex->describe) + if (!keyuse->val->used_tables() && !thd->lex->describe) { // Compare against constant store_key_item tmp(thd, keyinfo->key_part[i].field, @@ -16257,7 +16266,8 @@ join_read_system(JOIN_TAB *tab) empty_record(table); // Make empty record return -1; } - update_virtual_fields(tab->join->thd, table); + if (table->vfield) + update_virtual_fields(tab->join->thd, table); store_record(table,record[1]); } else if (!table->status) // Only happens with left join @@ -16306,7 +16316,8 @@ join_read_const(JOIN_TAB *tab) return report_error(table, error); return -1; } - update_virtual_fields(tab->join->thd, table); + if (table->vfield) + update_virtual_fields(tab->join->thd, table); store_record(table,record[1]); } else if (!(table->status & ~STATUS_NULL_ROW)) // Only happens with left join |