* Fix go it.

* Fix go ut.

* Fix go m to n.

* Fix ut.

* Fix symbol test.

* Add pattern match method for each OptRule

* Rename parameters

* Fix optimizer bug

* Fix comments

* Simplify matched pattern

* Fix OptGroupExpr exploration

* Fix comments

* Explore OptGroup util max round

* Add Variable/ColsDef/ColDef.

* Add symtable for plannode.

* Update set input and set output.

* Rebase and fix.

* Build relationships of variables.

* Implement updateAllOccurrence.

* Fix plan desc.

* Add test and fix bug.

* Add qctx for plan node.

* Add read by and written by.

* Address comment.

* Rebase and fix test.

* Fix compile.

* Address comment.

* Rebase and fix ut.

* Delete derivatives and dependencies.

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

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

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

* fix ci check result wrong

* address comment

Co-authored-by: Shylock Hg <33566796+Shylock-Hg@users.noreply.github.com>
Co-authored-by: Yee <2520865+yixinglu@users.noreply.github.com>

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

* replace graphd configs with Nebula 1.0 version and add enable_authorize and auth_type flag options when start Nebula service

restore options in Nebula 1.0

remain mutable options in gflags.json un changed

replace graphd configs with Nebula 1.0 version and add enable_authorize and auth_type flag options when start Nebula service

restore options in Nebula 1.0

remain mutable options in gflags.json un changed

replace graphd configs with Nebula 1.0 version and add enable_authorize and auth_type flag options when start Nebula service

restore options in Nebula 1.0

remain mutable options in gflags.json unchanged

* Fixed session timeout when FLAGS_session_idle_timeout_secs == 0

* reverted session_idle_timeout_secs back

* add comment

* Tests/add case for time index bound (#307)

* Remove timezone field.

* Fix the value to string.

* Remove extra blank.

* Add more.

* Correct the typo.

* Add test cases for index bound.

* Correct the error.

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

* Reuse the vid type check function. (#313)

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

* add comment

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>
Co-authored-by: Shylock Hg <33566796+Shylock-Hg@users.noreply.github.com>

* Add clone function for GetNeighbors plan node

* Move index scan clone to plan node

Co-authored-by: dutor <440396+dutor@users.noreply.github.com>
Co-authored-by: cpw <13495049+CPWstatic@users.noreply.github.com>

Force to merge because the issue cannot be fixed before CI passes

* add starts/ends-with expressions

* fix func name typo

* fix reserved keywords

* fix reserved keywords

* Fix CI failure

Co-authored-by: yaphet <4414314+darionyaphet@users.noreply.github.com>
Co-authored-by: Yee <2520865+yixinglu@users.noreply.github.com>

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

* Add conjunct path and semi shortest path executor.

* Implement bfs shortest executor.

* Implement conjunct path.

* Implement single pair bfs shortest.

* Debug.

* Rebase and fix.

* Refactor: save edges when expand and build result paths when meet.

* Add algo node and executor.

* Rebase and fix.

* Fix build interim path with edge name.

* Add test for bfs shortest executor.

* Add conjunct path test and fix bug.

* Add integrate test.

* Address comment.

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

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

* Remove timezone field.

* Fix the value to string.

* Remove extra blank.

* Add more.

* Correct the typo.

* Add test cases for index bound.

* Correct the error.

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

* fix extractPropExprs & add test case

* add test

* add test case

* add ExtractPropExprVisitor

* add visitor

* address comment

* address comment

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

* optimizer_rule_index

* added test cases

* Addressed yee's comments

* Addressed CPWstatic's comments

* To improve the FilterItems from tuple to struct

* fixed column def error;  improved error message.

* Improve code

* Resolved conflict

* Removed useless code

* LabelAttributeExpression rewrite

* Support the yield clause when fetch vertices on *.

* Add cases for yield when on *.

* Add more intergrate testing cases.

* Extra confirm the onStar mark.

* Change value to empty when lack tag.

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

* Make static empty result initialize lazily

* Rename static functions

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

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

* Update SpaceDesc usage

* Fix expression error

* Fix CI failure

* Continue to fix expression decode/encode error

* add TopN PlanNode and Executor

* fix executor

* remote notes

* fix varName()

* fix topn

* fix sort

* fix SortTest error

* fix topn test

* fix topn test

* use template to simply iters

* improve topn

* support JoinIter and PropIter sort

* rename iter

* change plan desc

* fix factorsString

* remove notes

* Remove timezone field.

* Fix the value to string.

* Remove extra blank.

* Add more.

* Correct the typo.

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

* Add constant expression folding visitor

* Fold function call expr

* Address comments

* Fix get edge.

* Fix test.

* Update test.

* Make it exit with failure by default.

* Address comment.

* Address comment.

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

Co-authored-by: bright-starry-sky <56461666+bright-starry-sky@users.noreply.github.com>

* validate_index_scan

* Addressed comments

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

* Add SpaceInfo and update the interface with new common.

* Validate the vids.

* Create space with given vid type.

* Fix condition.

* Fix test.

* Rebase.

* Address comment.

* Save.

* delete vid_size.

* Fix test.

* Rebase and fix conflict.

* Address comment.

* Address comment.

* Rebase.

* Fix test.

* Fix test and address comment.

* fix bug in PushFilterDownGetNbrsRule

* wrap setOutpuVar in cloneGn

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

* 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