Обсуждение: Jagged/ragged arrays
It seems that PostgreSQL 8.4 does not support ragged arrays. Is there a workaround to get similar functionality (mainly the ability to extract values in SQL expressions)? -- Florian Weimer <fweimer@bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99
Hey Florian,<br /><br />What do you mean by "ragged" arrays?<br /><br />-- <br />Regards,<br />Dmitriy<br /><br /><br />
On 21/09/2010 3:42 AM, Dmitriy Igrishin wrote:
> Hey Florian,
>
> What do you mean by "ragged" arrays?
At a guess:
craig=> SELECT '{ {1}, {1,2}, {1}, {1,2,3} }'::integer[][];
ERROR: multidimensional arrays must have array expressions with
matching dimensions
(OP) Correct?
--
Craig Ringer
Tech-related writing at http://soapyfrogs.blogspot.com/
* Craig Ringer:
> On 21/09/2010 3:42 AM, Dmitriy Igrishin wrote:
>> Hey Florian,
>>
>> What do you mean by "ragged" arrays?
>
> At a guess:
>
> craig=> SELECT '{ {1}, {1,2}, {1}, {1,2,3} }'::integer[][];
> ERROR: multidimensional arrays must have array expressions with
> matching dimensions
>
> (OP) Correct?
Yes, this is what I'm after.
--
Florian Weimer <fweimer@bfk.de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99
Hey Craig, Florian<br /><br />Ahh, this. Why not just yes NULLs as values of array?<br /><br /><div
class="gmail_quote">2010/9/21Craig Ringer <span dir="ltr"><<a
href="mailto:craig@postnewspapers.com.au">craig@postnewspapers.com.au</a>></span><br/><blockquote
class="gmail_quote"style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left:
1ex;"><divclass="im">On 21/09/2010 3:42 AM, Dmitriy Igrishin wrote:<br /><blockquote class="gmail_quote" style="margin:
0pt0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hey Florian,<br /><br /> What do you
meanby "ragged" arrays?<br /></blockquote><br /></div> At a guess:<br /><br /> craig=> SELECT '{ {1}, {1,2}, {1},
{1,2,3}}'::integer[][];<br /> ERROR: multidimensional arrays must have array expressions with matching dimensions<br
/><br/> (OP) Correct?<br /><font color="#888888"><br /> -- <br /> Craig Ringer<br /><br /> Tech-related writing at <a
href="http://soapyfrogs.blogspot.com/"target="_blank">http://soapyfrogs.blogspot.com/</a><br
/></font></blockquote></div><br/><br clear="all" /><br />-- <br />Regards,<br />Dmitriy<br /><br /><br />