* integrate ArangoSearch into GatherNode/GatherBlock logic
* fix inconsistency after merge
* add serialization/deserealization logic for IResearchViewNode sorting
* fix optimizer rule order
* fix copy/past typo
* fix tests
* ensure `GatherNode` is properly set up for ArangoSearch views
* adjust optimizer rule order
* further implementation of arangosearch query distribution
* do not store `aql::Collection` in `IResearchViewNode`, use `Query::collections()` instead
* some fixes
* cleanup
* some fixes after review
* more fixes after review
* use assertion instead of condition
* issue 373.2: move toVelocyPack into LogicalDataSource
* backport: move static DataSource related strings into StaticStrings, add support for registering snapshots on DBServer views
* add initial implementation of scatter view rule and node
* add tests for `IResearchViewNode` and `IResearchViewScatterNode`
* add missing check
* modify IResearch execution nodes to use references instead of pointers
* use view id in searialized `ExecutionNode` representation instead of the name
* add cluster mode stubs and checks
* very first attempt to distribute IResearchViewNode
* further implementation of cluster-wide arangosearch views
* fix invalid json format
* add tests for coordinator iresearch view
* allow to retrieve a list of existing views on a coordinator
* more tests for coordinator iresearch view
* some fixes to enable query explanation
* remove Collection dependency from RemoteNode
* remove unnecessary remote ArangoSearch view scatter
* fix explanation appearance
* add some assertions
* minor fixes
* implement IResearchViewCoordinator::updateProperties
* fix view DDL issues
* handle link modifications in DDL operations
* add coordinator implementation of iresearch view links
* fix tests
* further coordinator based view DDL implementation
* further IResearchViewCoordinator implementation
* add initial implementation of AgencyMock
* fix some tests
* code cleanup
* extend test + some fixes
* more tests for IResearchViewCoordinator
* fix tests for IResearchLinkCoordinator
* some fixes after merge
* fix tests
* remove declaration of nonexistent (previously removed) method
* some fixes after review
* remove string duplication
* more tests and fixes
* more fixes and tests
* more tests
* one more test
* fix 'use-after-free' asan error
* fix non-enterprise tests issues
Andrey Abramov
Simon
Vasiliy
Andrey Abramov
Jan