I was wondering what the purpose of HTON_FLUSH_AFTER_RENAME is for
handertons. It seems exposing this flag causes a call to "flush logs"
after any "alter table". Is there any other purpose? The relevant code
seems to be the following in sql_table.cc:
if (ha_check_storage_engine_flag(old_db_type, HTON_FLUSH_AFTER_RENAME))
For the alter table to be properly flushed to the logs, we
have to open the new table. If not, we get a problem on server
shutdown. But we do not need to attach MERGE children.
build_table_filename(path, sizeof(path), new_db, table_name, "", 0);
t_table= open_temporary_table(thd, path, new_db, tmp_name, 0);
sql_print_warning("Could not open table %s.%s after rename\n",
I see the last line calls "flush logs". I do not understand what the
code before that does.