MDEV-32531 MSAN / Valgrind errors in Item_func_like::get_mm_leaf with temporal field

Added missing initializer

mysql-test/main/analyze.result

@@ -429,9 +429,6 @@ SET join_cache_level=3;
 SET optimizer_switch='join_cache_hashed=on';
 SET optimizer_switch='join_cache_bka=on';
 set optimizer_switch='hash_join_cardinality=on';
-select benchmark(1,1);
-benchmark(1,1)
-0
 EXPLAIN
 SELECT * FROM t1, t2 WHERE b=a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -443,5 +440,18 @@ DROP TABLE t1,t2;
 set @@optimizer_switch=@save_optimizer_switch;
 set @@join_cache_level=@save_join_cache_level;
 #
+# MDEV-32531 MSAN / Valgrind errors in Item_func_like::get_mm_leaf with
+#            temporal field
+#
+CREATE TABLE t1 (f DATE);
+INSERT INTO t1 VALUES ('1978-08-27'),('1906-04-30');
+ANALYZE TABLE t1 PERSISTENT FOR ALL;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM t1 WHERE f LIKE '2023%';
+f
+DROP TABLE t1;
+#
 # End of 10.6 tests
 #

mysql-test/main/analyze.test

@@ -287,7 +287,6 @@ SET optimizer_switch='join_cache_hashed=on';
 SET optimizer_switch='join_cache_bka=on';
 set optimizer_switch='hash_join_cardinality=on';
 
-select benchmark(1,1);
 EXPLAIN
 SELECT * FROM t1, t2 WHERE b=a;
 SELECT * FROM t1, t2 WHERE b=a;
@@ -296,6 +295,17 @@ DROP TABLE t1,t2;
 set @@optimizer_switch=@save_optimizer_switch;
 set @@join_cache_level=@save_join_cache_level;
 
+--echo #
+--echo # MDEV-32531 MSAN / Valgrind errors in Item_func_like::get_mm_leaf with
+--echo #            temporal field
+--echo #
+
+CREATE TABLE t1 (f DATE);
+INSERT INTO t1 VALUES ('1978-08-27'),('1906-04-30');
+ANALYZE TABLE t1 PERSISTENT FOR ALL;
+SELECT * FROM t1 WHERE f LIKE '2023%';
+DROP TABLE t1;
+
 --echo #
 --echo # End of 10.6 tests
 --echo #

sql/opt_range.cc

@@ -3532,6 +3532,7 @@ bool calculate_cond_selectivity_for_table(THD *thd, TABLE *table, Item **cond)
   
     init_sql_alloc(key_memory_quick_range_select_root, &alloc,
                    thd->variables.range_alloc_block_size, 0, MYF(MY_THREAD_SPECIFIC));
+    bzero((void*) &param, sizeof(param));
     param.thd= thd;
     param.mem_root= &alloc;
     param.old_root= thd->mem_root;