Trigger Suddenly Fails With : "ERROR 1054 (42S22): Unknown column .. in 'NEW'"
(Doc ID 1969771.1)
Last updated on APRIL 15, 2020
MySQL Server - Version 5.6 to 5.7 [Release 5.6 to 5.7]
Information in this document applies to any platform.
A trigger that worked well, suddenly stops working, and queries could fail like this:
TRUNCATE TABLE, ANALYZE TABLE, OPTIMIZE TABLE, ALTER TABLE were run on the tables referred to in the trigger.
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