diff options
Diffstat (limited to 'sql/opt_range.cc')
-rw-r--r-- | sql/opt_range.cc | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sql/opt_range.cc b/sql/opt_range.cc index 6d5970ae4b9..dc987e196f4 100644 --- a/sql/opt_range.cc +++ b/sql/opt_range.cc @@ -9497,7 +9497,7 @@ ha_rows check_quick_select(PARAM *param, uint idx, bool index_only, SEL_ARG_RANGE_SEQ seq; RANGE_SEQ_IF seq_if = {NULL, sel_arg_range_seq_init, sel_arg_range_seq_next, 0, 0}; handler *file= param->table->file; - ha_rows rows; + ha_rows rows= HA_POS_ERROR; uint keynr= param->real_keynr[idx]; DBUG_ENTER("check_quick_select"); @@ -9537,8 +9537,13 @@ ha_rows check_quick_select(PARAM *param, uint idx, bool index_only, *mrr_flags |= HA_MRR_USE_DEFAULT_IMPL; *bufsize= param->thd->variables.mrr_buff_size; - rows= file->multi_range_read_info_const(keynr, &seq_if, (void*)&seq, 0, - bufsize, mrr_flags, cost); + /* + Skip materialized derived table/view result table from MRR check as + they aren't contain any data yet. + */ + if (param->table->pos_in_table_list->is_non_derived()) + rows= file->multi_range_read_info_const(keynr, &seq_if, (void*)&seq, 0, + bufsize, mrr_flags, cost); if (rows != HA_POS_ERROR) { param->quick_rows[keynr]= rows; |