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The server crashes with a stack trace similar to MDEV-18153. However, here the problem is not related to a change in sql_mode. Possibly, virtual columns containing references to non-virtual TIMESTAMP..ON UPDATE columns, do not catch changes imposed by the ON UPDATE clause.
SET SQL_MODE= DEFAULT;
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CREATE OR REPLACE TABLE t1 (
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t TIMESTAMP(4),
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d DATETIME,
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v TIMESTAMP(4) AS (t) VIRTUAL,
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KEY(v,d)
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);
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INSERT IGNORE INTO t1 (t,d) VALUES ('2006-03-01 23:59:59.9999','2029-10-10 21:27:53');
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UPDATE IGNORE t1 SET d = '2019-08-22 05:42:30.9999';
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UPDATE IGNORE t1 SET d = '2006-04-01 23:59:59.9999';
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#3 0x00007ffff76eba26 in __assert_fail () from /lib64/libc.so.6
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#4 0x0000000000eff83a in row_upd_sec_index_entry (node=0x7fff60077c48,
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thr=0x7fff6007b428)
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at /home/bar/maria-git/server.10.4/storage/innobase/row/row0upd.cc:2429
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#5 0x0000000000effeac in row_upd_sec_step (node=0x7fff60077c48,
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thr=0x7fff6007b428)
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at /home/bar/maria-git/server.10.4/storage/innobase/row/row0upd.cc:2543
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#6 0x0000000000f025c4 in row_upd (node=0x7fff60077c48, thr=0x7fff6007b428)
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at /home/bar/maria-git/server.10.4/storage/innobase/row/row0upd.cc:3319
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#7 0x0000000000f0292b in row_upd_step (thr=0x7fff6007b428)
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at /home/bar/maria-git/server.10.4/storage/innobase/row/row0upd.cc:3434
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#8 0x0000000000eb63da in row_update_for_mysql (prebuilt=0x7fff60077118)
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at /home/bar/maria-git/server.10.4/storage/innobase/row/row0mysql.cc:1885
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#9 0x0000000000d60769 in ha_innobase::update_row (this=0x7fff6006f6b8,
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old_row=0x7fff60073028 "\371]]\363T\"V\231\243\354Z\236]]\363T\"V\245\245\245\245\245\245`0\a`\377\177",
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new_row=0x7fff60073010 "\371]]\363T\"\227\231x\203~\373]]\363T\"V\245\245\245\245\245\245\371]]\363T\"V\231\243\354Z\236]]\363T\"V\245\245\245\245\245\245`0\a`\377\177")
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at /home/bar/maria-git/server.10.4/storage/innobase/handler/ha_innodb.cc:8849
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#10 0x0000000000b4bad6 in handler::ha_update_row (this=0x7fff6006f6b8,
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old_data=0x7fff60073028 "\371]]\363T\"V\231\243\354Z\236]]\363T\"V\245\245\245\245\245\245`0\a`\377\177",
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new_data=0x7fff60073010 "\371]]\363T\"\227\231x\203~\373]]\363T\"V\245\245\245\245\245\245\371]]\363T\"V\231\243\354Z\236]]\363T\"V\245\245\245\245\245\245`0\a`\377\177") at /home/bar/maria-git/server.10.4/sql/handler.cc:6727
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#11 0x000000000091baab in mysql_update (thd=0x7fff60000d60,
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table_list=0x7fff60014280, fields=..., values=..., conds=0x0, order_num=0,
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order=0x0, limit=18446744073709551615, ignore=true,
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found_return=0x7ffff41d6218, updated_return=0x7ffff41d6210)
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at /home/bar/maria-git/server.10.4/sql/sql_update.cc:1045
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If I add the DEFAULT clause into the column t, the problem goes away:
SET SQL_MODE= DEFAULT;
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CREATE OR REPLACE TABLE t1 (
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t TIMESTAMP(4) DEFAULT '2001-01-01 10:20:30',
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d DATETIME,
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v TIMESTAMP(4) AS (t) VIRTUAL,
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KEY(v,d)
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);
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INSERT IGNORE INTO t1 (t,d) VALUES ('2006-03-01 23:59:59.9999','2029-10-10 21:27:53');
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UPDATE IGNORE t1 SET d = '2019-08-22 05:42:30.9999';
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UPDATE IGNORE t1 SET d = '2006-04-01 23:59:59.9999';
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