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MySQL error code

MySQL error 3753

MySQL server error 3753 is ER_FUNCTIONAL_INDEX_ON_JSON_OR_GEOMETRY_FUNCTION, reported with SQLSTATE 42000.

Cannot create a functional index on a function that returns a JSON or GEOMETRY value.
Error3753
NameER_FUNCTIONAL_INDEX_ON_JSON_OR_GEOMETRY_FUNCTION
SQLSTATE42000
GroupServer errors

In other databases

Source: MySQL 8.4 Error Reference