pg document is not  recorded:maintenance_work_mem can not large than 2GB in 
windows。

https://www.postgresql.org/docs/14/runtime-config-resource.html




I suggest that:modify maintenance_work_mem parameter description in the pg 
documents:

add maintenance_work_mem parameter size limit in windows platform




if you set maintenance_work_mem large that 2GB in windows platform

postgresql service can not start。 

in the windows event viewer ,thare is the following error:

"ERROR: 3072000 is outside the valid range for parameter "maintenance_work_mem" 
(64 .. 2097151)




and the work_mem parameter also has similar problems as above。

https://www.postgresql.org/message-id/17895.1315869...@sss.pgh.pa.us




so, It is best to add this description to the document about work_mem and 
maintenance_work_mem parameter


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