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maintenance_work_mem upper limit =1gb??

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why has been maintenance_work_mem and work_mem been
restricted to 1gb... although i dont need it but kinda
server i am working on.... i wont mind
allocating...(32gb ram)....

#define MaxAllocSize       ((Size) 0x3fffffff)        
    /* 1 gigabyte - 1 */

also for those who dont know the max. shared_buffer=
262143 (= 2^31 (INT_MAX) / 8192(size of each
buffer)...) comes to be around 2Gb... 

although i would like to set this high also... but the
reasoning for its limit seems logical...

developers might want to increase these limits.. with
the kind-of 64 bits available now... might speed up
the things little bit ;)

Regards
Himanshu


		
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