forkfun af04faee2b MDEV-38472 Assertion in Diagnostics_area::set_error_status on UPDATE...LIMIT DEFAULT ...

Binding DEFAULT to a LIMIT ? placeholder via EXECUTE ... USING is never
rejected at bind time. unit->set_limit() later evaluates it and sets
ER_INVALID_DEFAULT_PARAM in the Diagnostics_area, but SQLCOM_UPDATE (and
SQLCOM_UPDATE_MULTI, SQLCOM_INSERT_SELECT/REPLACE_SELECT) proceeded into
open_tables() regardless. A concurrent metadata change (e.g. ALTER TABLE
FORCE) then triggers Reprepare_observer::report_error(), which tries to
set ER_NEED_REPREPARE on an already-set DA and hits the assert.

Add the same thd->is_error() check after unit->set_limit() (as in
SQLCOM_DELETE), aborting before open_tables() is reached.

2026-08-11 17:01:55 +02:00

336 KiB

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