ACT-1293 Add SQL Query extensions

[pp84]

Can a patch be provided for this issue to be included in 5.9 version?
ACT-1293   Add SQL Query extensions
Thank you

[frederikherema1]

Look into the Activiti-commits on github, browse the pages and look for comments containing "ACT-1293". Cherry-pick those change-sets in the branch you're working on. I think it's about 5-6 different sets on Master…

https://github.com/Activiti/Activiti/commit/b787757f3e32f7bf69c4b9eb2f8c2a80fab40736
https://github.com/Activiti/Activiti/commit/9b5671002304ad5057727a2619087cd62fd90f54
https://github.com/Activiti/Activiti/commit/97547a360fffcec54bc3440af2a90983b71ffd99
….