MDEV-35037 Invalid (old?) table or database name 't#i#00' upon creating...

MDEV-35037 Invalid (old?) table or database name 't#i#00' upon creating RocksDB table with vector index

disallow it, for now

also fixes

MDEV-35036 Assertion failure in myrocks::ha_rocksdb::position upon INSERT into RocksDB table with vector index

storage/rocksdb/ha_rocksdb.cc

@@ -7827,6 +7827,12 @@ int ha_rocksdb::create(const char *const name, TABLE *const table_arg,
   DBUG_ASSERT(table_arg != nullptr);
   DBUG_ASSERT(create_info != nullptr);
 
+  if (table_arg->s->total_keys > table_arg->s->keys)
+  {
+    my_error(ER_ILLEGAL_HA_CREATE_OPTION, MYF(0), "RocksDB", "VECTOR");
+    DBUG_RETURN(HA_ERR_UNSUPPORTED);
+  }
+
   if (create_info->data_file_name) {
     // DATA DIRECTORY is used to create tables under a specific location
     // outside the MySQL data directory. We don't support this for MyRocks.

storage/rocksdb/mysql-test/rocksdb/r/vector.result

+# RocksDB doesn't support VECTOR yet
+create table t1(v blob not null, vector index(v)) engine=rocksdb;
+ERROR HY000: Table storage engine 'RocksDB' does not support the create option 'VECTOR'

storage/rocksdb/mysql-test/rocksdb/t/vector.test

+--source include/have_rocksdb.inc
+
+--echo # RocksDB doesn't support VECTOR yet
+--error ER_ILLEGAL_HA_CREATE_OPTION
+create table t1(v blob not null, vector index(v)) engine=rocksdb;