= SQL RECURSIVE prevent infinite recursion
{c}
Example under: \a[nodejs/sequelize/raw/tree.js]
* https://stackoverflow.com/questions/31739150/to-find-infinite-recursive-loop-in-cte Canon.
* <SQL Server>:
* https://stackoverflow.com/questions/58326847/sql-recursion-cte-infinite-loop
* https://dba.stackexchange.com/questions/215426/simple-recursive-cte-stuck-in-infinite-loop
* https://stackoverflow.com/questions/13718168/infinite-loop-in-cte-when-parsing-self-referencing-table
* <PostgreSQL>
* https://stackoverflow.com/questions/26671612/prevent-and-or-detect-cycles-in-postgres?noredirect=1&lq=1
* https://stackoverflow.com/questions/39555616/detect-cycles-using-sql\#:~:text=A%20cycle%20is%20detected%20when,are%20added%20to%20the%20entry.