On 07/10/11 10:56, Henry Drexler wrote:
On Thu, Oct 6, 2011 at 4:37 PM, Gavin Flower
<GavinFlower@archidevsys.co.nz> wrote:
On 07/10/11 01:40, Henry Drexler wrote:
I have a workaround to the error/result, but am wondering what the result of ts_rank of '1e-020' represents?
Here is the original:
select
ts_rank(to_tsvector('a_a_do_ug_read_retreqmon_ptam'),to_tsquery('a_a_do_ug_read_retrmso.com_ptam'))
----------------
9.99999968e-21
(1 row)
gavin=>
I am also on "PostgreSQL 9.1.1"
Thanks for posting the 9.99999968e-21, I did not realize it was using notation to represent a number, I thought it was an error code. That is good news - thank you for taking the time ans showing me your result - that solves it.
You're welcome.
It is amazing how 'trivial' things can have such significant effects - I once took a few hours to spot an extra ';' in a short C program that wasn't doing what it was meant to do!
In postgresql.conf I have:
extra_float_digits = 3 # min -15, max 3
the default is zero.
This might explain the difference in output.