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MySQL error code

MySQL error 1709

MySQL server error 1709 is ER_INDEX_COLUMN_TOO_LONG, reported with SQLSTATE HY000.

Index column size too large. The maximum column size is %lu bytes.
Error1709
NameER_INDEX_COLUMN_TOO_LONG
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference