In v13, the id for max_parallel_maintenance_workers is defined differently
as compared to HEAD in docs, so adjust the docs accordingly.
Reported-by: Magnus Hagander and Tom Lane
Discussion: https://postgr.es/m/CABUevEyAFQZ_jvjY_KtRUWbci4YMyQC1QAMzDQAbLs=XCo3m5Q@mail.gmail.com
to perform the operation is equal to the number of indexes on the
relation that support parallel vacuum which is limited by the number of
workers specified with PARALLEL option if any which is
- further limited by maintenance-workers"/>.
+ further limited by workers-maintenance"/>.
An index can participate in parallel vacuum if and only if the size of the
index is more than .
Please note that it is not guaranteed that the number of parallel workers