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MySQL error code

MySQL error 6006

MySQL server error 6006 is ER_EXPLAIN_INTO_IMPLICIT_FORMAT_NOT_SUPPORTED, reported with SQLSTATE 0A000.

EXPLAIN INTO does not support implicit FORMAT.
Error6006
NameER_EXPLAIN_INTO_IMPLICIT_FORMAT_NOT_SUPPORTED
SQLSTATE0A000
GroupServer errors

In other databases

Source: MySQL 8.4 Error Reference