Hi, Aleksey! Ok to push, thanks! On May 26, Aleksey Midenkov wrote:

revision-id: cd9cab54aac (mariadb-10.2.31-123-gcd9cab54aac) parent(s): d275ecbd208 author: Aleksey Midenkov <midenok@gmail.com> committer: Aleksey Midenkov <midenok@gmail.com> timestamp: 2020-05-25 20:56:31 +0300 message:

MDEV-20015 Assertion `!in_use->is_error()' failed in TABLE::update_virtual_field

update_virtual_field() is called as part of index rebuild in ha_myisam::repair() (MDEV-5800) which is done on bulk INSERT finish.

Assertion in update_virtual_field() was put as part of MDEV-16222 because update_virtual_field() returns in_use->is_error(). The idea: wrongly mixed semantics of error status before update_virtual_field() and the status returned by update_virtual_field(). The former can falsely influence the latter.

diff --git a/sql/table.cc b/sql/table.cc index d6d86d96016..2429bb12abe 100644 --- a/sql/table.cc +++ b/sql/table.cc @@ -7707,15 +7707,17 @@ int TABLE::update_virtual_fields(handler *h, enum_vcol_update_mode update_mode)

int TABLE::update_virtual_field(Field *vf) { - DBUG_ASSERT(!in_use->is_error()); - Query_arena backup_arena; DBUG_ENTER("TABLE::update_virtual_field"); + Query_arena backup_arena; + Counting_error_handler count_errors; + in_use->push_internal_handler(&count_errors); in_use->set_n_backup_active_arena(expr_arena, &backup_arena); bitmap_clear_all(&tmp_set); vf->vcol_info->expr->walk(&Item::update_vcol_processor, 0, &tmp_set); vf->vcol_info->expr->save_in_field(vf, 0); in_use->restore_active_arena(expr_arena, &backup_arena); - DBUG_RETURN(in_use->is_error()); + in_use->pop_internal_handler(); + DBUG_RETURN(count_errors.errors); }

Regards, Sergei VP of MariaDB Server Engineering and security@mariadb.org