multidimensional arrays
Is it possible to access a subarray of a multi dimensional array as a
whole?
example:
'{
{
{1,2,3}, {11,22,33}, {111,222,333}
},
{
{4,5,6}, {44,55,66}, {444,555,666}
},
{
{7,8,9}, {77,88,99}, {777,888,999}
}
}' --pretend this is _intarray
if wanted to do:
select case when 1 = any(_intarray[1][1]) then true else false end;
this should be equivalent to:
select case when 1 in (1,2,3) then true else false end;
the first statement produces an error about target of any must be an
array. If I try to cast to integer[] i get an error stating that
integer cant be cast to integer[]
Thanks!
Ketema <ketema@gmail.com> writes:
Is it possible to access a subarray of a multi dimensional array as a
whole?
I think you want an array slice (ie, something with some colons in the
subscripts). See the manual:
http://www.postgresql.org/docs/8.2/static/arrays.html
regards, tom lane
On May 1, 10:48 pm, t...@sss.pgh.pa.us (Tom Lane) wrote:
Ketema <ket...@gmail.com> writes:
Is it possible to access a subarray of a multi dimensional array as a
whole?I think you want an array slice (ie, something with some colons in the
subscripts). See the manual:http://www.postgresql.org/docs/8.2/static/arrays.htmlregards, tom lane
---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to majord...@postgresql.org so that your
message can get through to the mailing list cleanly
OK, sorry I missed that. still not sure I understand even after
reading that.
for my above example I would then use:
select case when 1 = any(_intarray[1:1][1:1]) then true else false
end; ?
and it should return true since a 1 exists in that first subarray?
thanks