And can you post an explain plan for the incorrect scan? In particular
is it using a bitmap index scan or a regular index scan? Or does it
happen with either?
--
Greg
On 9 Jun 2009, at 09:43, Richard Huxton <dev@archonet.com> wrote:
> Floris Bos / Maxnet wrote:
>> I am having the problem that some queries are unable to find rows
>> when using the index.
>> When I force a sequential scan, by doing "set
>> enable_indexscan=false; set enable_bitmapscan=false;", the same
>> queries work fine.
>
> Not a hacker myself, but I can tell you that the first question
> you'll be asked is "can you produce a test case"? If you can
> generate the problem from a test table+generated data that will let
> people figure out the problem for you.
>
> If not, details of the table schema will be needed, and is there any
> pattern to the missed rows? Also - compile settings, character set
> and locale details might be relevant too.
>
> --
> Richard Huxton
> Archonet Ltd
>
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