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MySQL error code

MySQL error 6134

MySQL server error 6134 is ER_NON_SCALAR_USED_AS_KEY, reported with SQLSTATE HY000.

Non-scalar (e.g., vector) column '%s' cannot be used as key.
Error6134
NameER_NON_SCALAR_USED_AS_KEY
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference