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| author | Monty <monty@mariadb.org> | 2020-05-15 15:14:08 +0300 |
|---|---|---|
| committer | Monty <monty@mariadb.org> | 2020-05-15 15:14:08 +0300 |
| commit | 72789e4b2b0f631635297c6bc785c7364d60ca9f (patch) | |
| tree | 71e8efa13a870cdc3ca8bbe6a25ed5f655bf3269 /sql/opt_range.cc | |
| parent | 523d67a272ca37bf6c1972bae09f59d72a78d99c (diff) | |
| download | mariadb-git-72789e4b2b0f631635297c6bc785c7364d60ca9f.tar.gz | |
Fixed access to not initalized memory
Most of the volations came from:
sel_arg_range_seq_next(void*, st_key_multi_range*) (opt_range_mrr.cc:342)
Diffstat (limited to 'sql/opt_range.cc')
| -rw-r--r-- | sql/opt_range.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/opt_range.cc b/sql/opt_range.cc index bf968878a72..66c870dd2ac 100644 --- a/sql/opt_range.cc +++ b/sql/opt_range.cc @@ -2721,6 +2721,7 @@ int SQL_SELECT::test_quick_select(THD *thd, key_map keys_to_use, param.imerge_cost_buff_size= 0; param.using_real_indexes= TRUE; param.remove_jump_scans= TRUE; + param.max_key_parts= 0; param.remove_false_where_parts= remove_false_parts_of_where; param.force_default_mrr= ordered_output; param.possible_keys.clear_all(); @@ -3435,6 +3436,7 @@ bool calculate_cond_selectivity_for_table(THD *thd, TABLE *table, Item **cond) param.using_real_indexes= FALSE; param.real_keynr[0]= 0; param.alloced_sel_args= 0; + param.max_key_parts= 0; thd->no_errors=1; |