* add getedge & test case

* add test case

* fix test error

* zero step

* add prop iterator

* add getedge & test case

* fix getEdge

* add test case

* fix test error

* address comment

* address comment

* Add input vars and output vars.

* update.

* Address comment and update datacollect.

* Rebase.

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* fix test empty

* fix error

* change empty to badtype

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Add optimizer

* Fix input/output variable of new plan node

* Split default and query opt rules

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Refactor executor make function

* make gcc shutup

* get value bound for index scan

* change user email

* fixed linterror

* Addressed dutor's comments

* Simplified code logic for string

* fixed error

* Simplify the code

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Fix yield sentence with where in constant expression

* address yee's commnet

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Simplify the replication of expression by clone function

* Fix compile error

* Add QueryStorageExecutor to extract the code to handle completeness from storage responses and the failed partition.

* Fix the header guard name.

* Move base to executer folder.

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Add the ownership holder to separate the logic of ownership and container.

* Fix the missing lock.

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Add rewrite label attr expr visitor

* Fix review comments

* Rename

* Split the prepare properties to independent function for more readable.

* Format.

* Fix the column name emplace logic.

Co-authored-by: laura-ding <48548375+laura-ding@users.noreply.github.com>
Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* subgraph to plan

* fix error

* fix filter

* fix error

* add test case

* fix memory leak

* fix error

* add test case

* fix error& add test case

* remove useless code

* add edgetype

* address test error

* test

* fix test error

* remove useless code

* fix runtime error

* Add detect service is ok and init configs

* add configs

* address yee's commnet

* rebase upstream

* use config delay

* update delay time

* Restore the test for the mock

* Fix show parts result not match

Co-authored-by: Yee <2520865+yixinglu@users.noreply.github.com>

* Add find path validator.

* Implement validate.

* Remove useless vlog.

* Add test.

* Refactor.

* Address comment.

* Rebase and address comment.

* Rebase.

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Use expression visitor for expression type/props deduction

* Fix CI failure

* Set the get vertices/edges response columns name by plan. Change _vid column to VertexID.

* Remove the incompactible comment.

* Move the col names object, and remove some unused commnet.

* Reserve the correct size.

* Avoid replace column names if not provide.

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Add ExprVisitorImpl base class

* Try to fix psutil install error

* Fix nebula2 python install method

Co-authored-by: laura-ding <48548375+laura-ding@users.noreply.github.com>

* lookup Validator | Planner | Executor

* IndexScan Planner and Executor

* Rebase master

* Add expression parsing tests

* Fix UT

* MoveUp dependencies to PlanNode

* Define DepKind in PlanNode

* Remove DepKind

* Fix include guard macro

* Remove the execution plan dependency when creating plan node

* Fix compile error

* Fix zero step.

* Rename MultiOutputs with PassThrough and delete ep test.

* Add test.

* Rebase and fix conflict.

* Rebase.

* Fix ut.

* Add AttributeExpression

* Rename accordingly

* refactor expression rules

* fix accordingly

* add ENABLE_VERBOSE_BISON

* Fix CI

* Fix join input.

* Fix validator test.

* Always join input in pipe.

* Dedup the dst vids in nsteps and fix test.

* Update test.

* remove unuse package

* update

* Add explain for some plan nodes.

* Remove the unused cmake.

* Mask the password.

Co-authored-by: Yee <2520865+yixinglu@users.noreply.github.com>
Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* add boundclause tostring

* add subgraph tostring

* add testcase

* address comment

* address comment

Co-authored-by: jimingquan <mingquan.ji@vesoft.com>
Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Remove ASTValidator

* Refactor validator test base

* Fix fetch validator test cases

* Fix rebase error

* Remove pylint steps

* Fix compile error

* Merge the code about traversal validator.

* Fix the logic bug.

* Fix the step condition.

* Add some test cases.

* Add some tests.

* Let get subgraph over out band edge in default.

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* add notice of release for 2.0 pre and fix logo.png

* Doc optimization

* Optimized the warning message.
* Fixed all link problems.

* fixed a typo

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>

* Fix install prefix of package script

* Install nebula common