Re: index bloat question - Mailing list pgsql-general

From Rob Sargent
Subject Re: index bloat question
Date
Msg-id 4E9BA34F.7080207@gmail.com
Whole thread Raw
In response to Re: index bloat question  (Scott Marlowe <scott.marlowe@gmail.com>)
List pgsql-general

Scott Marlowe wrote:
> On Sun, Oct 16, 2011 at 2:41 PM, Szymon Guz <mabewlun@gmail.com> wrote:
>
>> Hi,
>> just a couple of questions:
>> will there be an index bloat if I have:
>> - a serial column and only add rows to the table?
>> - a text column and I only add rows to the table?
>> For the serial column the numbers are only incremented, for the text column
>> I add random strings.
>>
>
> With no deletes or updates, the only bloat will be from a non 100% fill factor.
>
>
Is there no index rebalancing overhead on monotonically increasing keys
compare to (decently) random.  Seems one would continuously write to the
"right-most" sub-leaf node.

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