Arrays Question
Hi
Is it possible to have subarrays from an array constant??
Is it possible to have indices on arrays??
For the first here it is whats on 7.1.2:
dynacom=# select '{1,2,3}'::_int4 ;
?column?
----------
{1,2,3}
(1 row)
dynacom=#
dynacom=# select '{1,2,3}[1:2]'::_int4 ;
?column?
----------
{1,2,3}
(1 row)
dynacom=#
What would someone expect is the select to return {1,2}.
Any one has a clue???
If postgresql had this feature along with the indexing on arrays, that would
make it (not that it is not allready!) the perfect candidate for tree
manipulation.
Thanx in advance
--
Achilleus Mantzios
S/W Engineer
IT dept
Dynacom Tankers Mngmt
tel: +30-10-8981112
fax: +30-10-8981877
email: it@dynacomtm.com
rnd@gatewaynet.com
Check contrib/intarray for indexed access methods to arrays of integers.
Oleg
On Fri, 25 Jan 2002, Achilleus Mantzios wrote:
Hi
Is it possible to have subarrays from an array constant??
Is it possible to have indices on arrays??For the first here it is whats on 7.1.2:
dynacom=# select '{1,2,3}'::_int4 ;
?column?
----------
{1,2,3}
(1 row)dynacom=#
dynacom=# select '{1,2,3}[1:2]'::_int4 ;
?column?
----------
{1,2,3}
(1 row)dynacom=#
What would someone expect is the select to return {1,2}.
Any one has a clue???
If postgresql had this feature along with the indexing on arrays, that would
make it (not that it is not allready!) the perfect candidate for tree
manipulation.Thanx in advance
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83