Hi, after some more searching on the net I came across references to PGobject and got this working using standard JDBC calls which is a good start, I don't suppose any one has any hints about using this in JPA queries under eclipselink? I've created a converter for the single case, but i get errors when I try and use an array.
If I try and receive an array I get a not implemented error on getArrayImpl due to the use of a Map. Conversely if I construct an array of my PGobjects subclasses and try to pass that as a parameter to a query I get an exception that setObject can't infer the sql type needed and to provide an explicit one. I was hoping that as PGobject has a getType method that it would be used?
Is it possible to specify the type when passing an array using JPA?
Thanks
John
On 29/09/2010 13:59, John Lister wrote:
Hi, suppose I have a query such as
select * from blah where (a,b) in ( (1,2),(2,3),(3,4)...)
I'd like to do this using jdbc and use a list/array for the IN parameter.
using postgresql 8.3, it is possible to rewrite it so that I am passing in an array instead of a hardcoded list as so
select * from blah where (a, b)::myPairType = any ( array of myPairType)
provided I've created a type (myPairType) to represent my data pair and a comparison operator for the new data type.
My question is therefore is it possible to pass an array of this type using jdbc or alternatively pass an array of arrays to represent my pair and convert that in the sql?
Thanks
John
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