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MySQL error code

MySQL error 3018

MySQL server error 3018 is ER_NO_FT_MATERIALIZED_SUBQUERY, reported with SQLSTATE HY000.

Cannot create FULLTEXT index on materialized subquery
Error3018
NameER_NO_FT_MATERIALIZED_SUBQUERY
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference