Queries combinations (union, union all, ...)

[MageSlayer]

Hi Chris

It's an issue for UNION, UNION ALL, INTERSECT support.

[aaelony]

Might subselect be useful for UNION and UNION ALL queries?

[jiangjianxiao]

• support UNION UNION ALL..

[AlexBaranosky]

I only have MySQL running, and these don't exist in MySQL. I've got some work that I can put on a branch if one of you are interested you can take it and run with it.

[jiangjianxiao]

thank, i like sqlalchemy, Korma is very flexible, and I hope The Korma there are the SQLAlchemy similar functionality

[AlexBaranosky]

This is what I came up with https://github.com/korma/Korma/compare/union-support

I couldn't run this query using java.jdbc to confirm it works as desired, since I only have MySQL installed.

Also, ORDER_BY support would need to be added.

Another concern is that the syntax is unfortunately clunky. I don't want the sub-queries to execute so used (-> (select* ...) (where ...))

[AlexBaranosky]

Can anyone test this code on a version of SQL that supports UNION?
https://github.com/korma/Korma/compare/union-support

[jiangjianxiao]

i test union-all on postgresql, no problem

[AlexBaranosky]

I'll push a SNAPSHOT release we can test out a bit before the next beta.

On Tue, Jan 8, 2013 at 10:42 PM, jiangjianxiao notifications@github.comwrote:

i test union-all on postgresql, no problem

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Reply to this email directly or view it on GitHubhttps://github.com//issues/39#issuecomment-12033499.

[AlexBaranosky]

I deployed a korma-0.3.0-beta15-SNAPSHOT to clojars. Please try it out and let me know of anything.