How can I combine two queries opencmis alfresco

Question

I want to get all files that have either aspect A or aspect B.

Here are my queries:

SELECT * FROM <ASPECT A>

SELECT * FROM <ASPECT B>` 

I know that UNION doesn't exist in opencmis, so is there any way to get around this?

Answer 1

As far as I know there is no way to do it in CMIS.

But you can post process result in your webscript by simply joining them. Since you marked your question with java tag I suppose you are using Java backed webscript in which result of CMIS query is stored in ItemIterable<QueryResult> collection. So just execute both queries and merge result in one collection.