MDEV-35038 Server crash in Index_statistics::get_avg_frequency upon EITS...

MDEV-35038 Server crash in Index_statistics::get_avg_frequency upon EITS collection for vector index

don't collect eits for vector indexes

mysql-test/main/vector2.result

 # Aria doesn't support VECTOR yet
 create table t1(v blob not null, vector index(v)) engine=aria;
 ERROR HY000: Table storage engine 'Aria' does not support the create option 'VECTOR'
+#
+# MDEV-35038 Server crash in Index_statistics::get_avg_frequency upon EITS collection for vector index
+#
+create table t (a int, v blob not null, vector index (v));
+analyze table t persistent for columns() indexes (v);
+Table	Op	Msg_type	Msg_text
+test.t	analyze	status	Engine-independent statistics collected
+test.t	analyze	status	Table is already up to date
+drop table t;

mysql-test/main/vector2.test

@@ -5,3 +5,10 @@
 --echo # Aria doesn't support VECTOR yet
 --error ER_ILLEGAL_HA_CREATE_OPTION
 create table t1(v blob not null, vector index(v)) engine=aria;
+
+--echo #
+--echo # MDEV-35038 Server crash in Index_statistics::get_avg_frequency upon EITS collection for vector index
+--echo #
+create table t (a int, v blob not null, vector index (v));
+analyze table t persistent for columns() indexes (v);
+drop table t;

sql/sql_statistics.cc

@@ -2965,12 +2965,12 @@ int update_statistics_for_table(THD *thd, TABLE *table)
 
   /* Update the statistical table index_stats */
   stat_table= tables[INDEX_STAT].table;
-  uint key;
-  key_map::Iterator it(table->keys_in_use_for_query);
   Index_stat index_stat(stat_table, table);
 
-  while ((key= it++) != key_map::Iterator::BITMAP_END)
+  for (uint key= 0; key < table->s->keys; key++)
   {
+    if (!table->keys_in_use_for_query.is_set(key))
+      continue;
     KEY *key_info= table->key_info+key;
     uint key_parts= table->actual_n_key_parts(key_info);
     for (i= 0; i < key_parts; i++)