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MDEV-33478: Tests massively fail with clang-18 -fsanitize=memory

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Starting with clang-16, MemorySanitizer appears to check that
uninitialized values not be passed by value nor returned.
Previously, it was allowed to copy uninitialized data in such cases.

get_foreign_key_info(): Remove a local variable that was passed
uninitialized to a function.

DsMrr_impl: Initialize key_buffer, because DsMrr_impl::dsmrr_init()
is reading it.

test_bind_result_ext1(): MYSQL_TYPE_LONG is 32 bits, hence we must
use a 32-bit type, such as int. sizeof(long) differs between
LP64 and LLP64 targets.
This commit is contained in:
Marko Mäkelä
2024-03-18 16:01:29 +02:00
parent fb774eb1eb
commit 09d991d01c
8 changed files with 25 additions and 19 deletions
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sql/sql_lex.h
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@ -3260,7 +3260,7 @@ public:
Table_type table_type; /* Used for SHOW CREATE */
List<Key_part_spec> ref_list;
List<LEX_USER> users_list;
List<Item> *insert_list,field_list,value_list,update_list;
List<Item> *insert_list= nullptr,field_list,value_list,update_list;
List<List_item> many_values;
List<set_var_base> var_list;
List<set_var_base> stmt_var_list; //SET_STATEMENT values