diff options
Diffstat (limited to 'sql/item_subselect.cc')
| -rw-r--r-- | sql/item_subselect.cc | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc index da651cec70c..0ce9c555fea 100644 --- a/sql/item_subselect.cc +++ b/sql/item_subselect.cc @@ -311,9 +311,14 @@ void Item_subselect::update_used_tables() void Item_subselect::print(String *str, enum_query_type query_type) { - str->append('('); - engine->print(str, query_type); - str->append(')'); + if (engine) + { + str->append('('); + engine->print(str, query_type); + str->append(')'); + } + else + str->append("(...)"); } @@ -1863,7 +1868,8 @@ void subselect_uniquesubquery_engine::fix_length_and_dec(Item_cache **row) DBUG_ASSERT(0); } -int init_read_record_seq(JOIN_TAB *tab); +int read_first_record_seq(JOIN_TAB *tab); +int rr_sequential(READ_RECORD *info); int join_read_always_key_or_null(JOIN_TAB *tab); int join_read_next_same_or_null(READ_RECORD *info); @@ -1945,10 +1951,12 @@ int subselect_single_select_engine::exec() /* Change the access method to full table scan */ tab->save_read_first_record= tab->read_first_record; tab->save_read_record= tab->read_record.read_record; - tab->read_first_record= init_read_record_seq; + tab->read_record.read_record= rr_sequential; + tab->read_first_record= read_first_record_seq; tab->read_record.record= tab->table->record[0]; tab->read_record.thd= join->thd; tab->read_record.ref_length= tab->table->file->ref_length; + tab->read_record.unlock_row= rr_unlock_row; *(last_changed_tab++)= tab; break; } |