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6 commits

Author SHA1 Message Date
Sergei Petrunia
fe41171c96 MDEV-33533: Crash at execution of DELETE when trying to use rowid filter
(Based on original patch by Oleksandr Byelkin)

Multi-table DELETE can execute via "buffered" mode: at phase #1 it collects
rowids of rows to be deleted, then at phase #2 in multi_delete::do_deletes()
it calls handler->rnd_pos() to read rows to be deleted and deletes them.

The problem occurred when phase #1 used Rowid Filter on the table that
phase #2 would be deleting from.
In InnoDB, h->rnd_init(scan=false) and h->rnd_pos() is an index scan over PK
under the hood. So, at phase #2 ha_innobase::rnd_init() would try to use the
Rowid Filter and hit an assertion inside ha_innobase::rnd_init().

Note that multi-table UPDATE works similarly but was not affected, because
patch for MDEV-7487 added code to disable rowid filter for phase #2 in
multi_update::do_updates().

This patch changes the approach:
- It makes InnoDB not use Rowid Filter in rnd_pos() scans: it is disabled in
  ha_innobase::rnd_init() and enabled back in ha_innobase::rnd_end().
- multi_update::do_updates() no longer disables Rowid Filter for phase#2 as
  it is no longer necessary.
2024-05-13 09:52:39 +02:00
Lena Startseva
184e65954b MDEV-27691: make working view-protocol
Update tests for version 10.4
2022-09-23 19:47:30 +07:00
Marko Mäkelä
e6bdf77e4b Merge 10.3 into 10.4
In is_eits_usable(), we disable an assertion that fails due to
MDEV-19334.
2019-04-25 16:05:20 +03:00
Marko Mäkelä
acf6f92aa9 Merge 10.2 into 10.3 2019-04-25 09:05:52 +03:00
Oleksandr Byelkin
de745ecf29 MDEV-11953: support of brackets in UNION/EXCEPT/INTERSECT operations 2018-07-04 19:13:55 +02:00
Michael Widenius
a7abddeffa Create 'main' test directory and move 't' and 'r' there 2018-03-29 13:59:44 +03:00
Renamed from mysql-test/t/update_innodb.test (Browse further)