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Re: judging acceptable discrepancy in row count v. estimate

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> On Oct 16, 2018, at 1:01 PM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
> 
> Rob Sargent <robjsargent@xxxxxxxxx> writes:
>> Should reality be half again as large as the estimated row count?
>> coon=# select count(*) from sui.segment;
>>  count   
>> ----------
>> 49,942,837  -- my commas
>> (1 row)
> 
>> coon=# vacuum (analyse, verbose) sui.probandset;
> 
> Uh, what does sui.probandset have to do with sui.segment ?
> 
> 			regards, tom lane

As the locals say, Oh My Heck. Nothing at all as far as row count is concern.  Deepest apologies.




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