Karl Grossner wrote:
I've thrashed at this transform for quite a while and come up empty. The crosstab() functions, and the documented examples, all do something more complex than I need. I can do this after the fact trivially in python with the 'zip()' function, but I need it real-time from a view or function.Of course I could be overlooking the obvious (it's happened before!) I have this: attr1 attr2 attr3 ------ ------ ------ cat1 0.34 0.12 0.22 cat2 0.11 0.67 0.31 and need it transposed thus: cat1 cat2 ----- ----- attr1 0.34 0.11 attr2 0.12 0.67 attr3 0.22 0.31
I see no response; so I thought I'd take a stab at it. I don't have 8.3 yet so I cannot test my idea. I read the docs, and I think what you need to do is create SQL that will produce
cat attr val ---- ----- ---- cat1 attr1 0.34 cat1 attr2 0.12 cat1 attr3 0.22 cat2 attr1 0.11 cat2 attr2 0.67 cat2 attr3 0.31 That pass the SQL into crosstab(). -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
