#263 enable bulk fetch for insert select sql commands

storage/tokudb/ha_tokudb.cc

@@ -4395,7 +4395,7 @@ int ha_tokudb::prepare_index_key_scan(const uchar * key, uint key_len) {
 
     range_lock_grabbed = true;
     range_lock_grabbed_null = index_key_is_null(table, tokudb_active_index, key, key_len);
-    doing_bulk_fetch = thd_sql_command(thd) == SQLCOM_SELECT || thd_sql_command(thd) == SQLCOM_CREATE_TABLE;
+    doing_bulk_fetch = thd_sql_command(thd) == SQLCOM_SELECT || thd_sql_command(thd) == SQLCOM_CREATE_TABLE || thd_sql_command(thd) == SQLCOM_INSERT_SELECT;
     bulk_fetch_iteration = 0;
     rows_fetched_using_bulk_fetch = 0;
     error = 0;
@@ -5694,11 +5694,8 @@ int ha_tokudb::prelock_range( const key_range *start_key, const key_range *end_k
         goto cleanup; 
     }
 
-    //
     // at this point, determine if we will be doing bulk fetch
-    // as of now, only do it if we are doing a select
-    //
-    doing_bulk_fetch = thd_sql_command(thd) == SQLCOM_SELECT || thd_sql_command(thd) == SQLCOM_CREATE_TABLE;
+    doing_bulk_fetch = thd_sql_command(thd) == SQLCOM_SELECT || thd_sql_command(thd) == SQLCOM_CREATE_TABLE || thd_sql_command(thd) == SQLCOM_INSERT_SELECT;
     bulk_fetch_iteration = 0;
     rows_fetched_using_bulk_fetch = 0;