* Added first draft of ShadowRow Interface
* Refactored RegisterPlan and pulled it out of the ExecutionNode
* AqlItemBlock now has an additional hidden register to store subquery depth infromation. Right now no shadow rows are created, however thy could now make use of this situation
* Added API and test to insert new shadow rows into an OutputRow.
* Extrated test helper function
* Added API and tests to consume ShadowRows. Interface is there and compiles with templates, we might need to implement further underlying functions later on as we make progress on ShadowRows, it is only implemented in the minimal way (intentionally)
* Added a test for nested ShadowRows and adapted OutputRow accordingly.
* Added additional memory include, seems to be required under GCC not udner CLANG
* it actually helps to save fies before commiting them...
* Fixed serialization/Deserialization of AqlItemBlock to contain the hidden subquery register now
* Added a c++ test for AqlItemBlock. It just covers the basics thus far and needs to be improved.
* Fixed toVPack of AqlInputRow for subqueries. Also added serialization / deserialization tests for AqlItemRow
* Added a c++ test for inputAqlItem row serialization => AqlItemBlock deserialization
* Attempt to fix :windows: compile warning
* Added a serialization format to be backwards compatible to 3.5 whenever AQL item blocks need to be send over to remote nodes.
* Added more tests for serialization of shadow rows, and fixed a bug revealed by this
* Apply suggestions from code review
Thank you for review!
Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>
* Review comments. Thanks for spotting
* Fixed hidden merge conflicts
* Attempt to explain windows on how one can actually cast numbers into other number types...
* Update arangod/Aql/AqlItemBlockSerializationFormat.h
Co-Authored-By: Tobias Gödderz <tobias@arangodb.com>
Michael Hackstein