[OAK-5413] XPath: "union" combined with "or" is not converted correctly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.18, 1.6.0
• Component/s: query
• Assignee: Thomas Mueller
• Reporter: Thomas Mueller
• Created: 06/Jan/17 09:10
• Updated: 30/Jan/17 20:18
• Resolved: 06/Jan/17 09:49

Description

In OAK-4265 a limited form of "union" for XPath was added. However, union queries that contain "or" are not converted properly. For example:

//*[@a=1 or @b=1]
select [jcr:path], [jcr:score], * from [nt:base] as a where [a] = 1 
union select [jcr:path], [jcr:score], * from [nt:base] as a where [b] = 1

but

(//*[@a=1 or @b=1] | //*[@c=1])
select [jcr:path], [jcr:score], * from [nt:base] as a where [a] = 1 or [b] = 1 
union select [jcr:path], [jcr:score], * from [nt:base] as a where [c] = 1

It should be converted to:

select [jcr:path], [jcr:score], * from [nt:base] as a where [a] = 1 
union select [jcr:path], [jcr:score], * from [nt:base] as a where [b] = 1 
union select [jcr:path], [jcr:score], * from [nt:base] as a where [c] = 1 

Issue Links

• relates to: OAK-4265 XPath: support limited form of "union"