Hi, Aleksey! On Oct 17, Aleksey Midenkov wrote: > commit 8a84f5a40c1 > Author: Aleksey Midenkov <mide...@gmail.com> > Date: Thu May 27 17:00:14 2021 +0300 > > MDEV-24176 Preparations > > 1. moved fix_vcol_exprs() call to open_table() > > mysql_alter_table() doesn't do lock_tables() so it cannot win from > fix_vcol_exprs() from there. Tests affected: main.default_session
This is likely wrong, but the old code was wrong too. Neither open_table nor lock_tables is called under LOCK TABLES, but the session environment can change, I suspect. > > 2. cleanup_excluding_fields_processor removed. > > That was just a quick hack to exclude wrongly working Item_field from > processing. Now it works due to correct execution environment (see > next commit). Related to MDEV-10355 does it work now, in that commit, or only after the next commit? what exactly do you mean by correct execution environment? > > 3. Vanilla cleanups and comments. > > diff --git a/sql/item.h b/sql/item.h > index cc1914a7ad4..7b7fe04f0b2 100644 > --- a/sql/item.h > +++ b/sql/item.h > @@ -2586,6 +2585,12 @@ class Item_ident :public Item_result_field > const char *db_name; > const char *table_name; > const char *field_name; > + /* > + NOTE: came from TABLE::alias_name_used and this is only a hint! It works > + only in need_correct_ident() condition. On other cases it is FALSE even > if > + table_name is alias! It cannot be TRUE in these cases, lots of spaghetti > + logic depends on that. could you elaborate on that? > + */ > bool alias_name_used; /* true if item was resolved against alias */ > /* > Cached value of index for this field in table->field array, used by prep. Regards, Sergei VP of MariaDB Server Engineering and secur...@mariadb.org _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
