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Re: Large tables, ORDER BY and sequence/index scans

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Milan Zamazal wrote:
    PS> and value efective_cache_size ???

effective_cache_size = 128MB

thats rather small unless your systme is very memory constrained. assuming postgres is the primary disk IO consumer on this ysstem, take a look at the 'cached' value on TOP or whatever after its been running, thats a good first order estimate of effective_cache_size.... this is often half or more of your physical memory.



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