* Split queries into system and data queries
* System queries are sequentially executed and generate separate transaction deltas
* System transaction try locks for 100ms
* last_commited_system_ts saved to DBMS durability
* Replicating CREATE/DROP DATABASE
* Sending a system snapshot if REPLICA behind
* Passing a copy of the gatekeeper::access as std::any to all functions that could call an async execution
* Removed delete_on_drop flag (we now always delete on drop)
* Using UUID as the directory name for databases
* DBMS durability update (added versioning and salient information)
* Automatic migration from previous version
* Interpreter can run some queries without a target database
* SHOW REPLICA returns the status of the currently active DB
* Returning UUID instead of db name in the RPC responses
* Using UUIDs for database specification in RPC (not name)
* FrequentCheck forces update on reconnect
* TimestampRpc will detect if a replica is behind, and will update client's state
* Safer SLK reads
* Split SHOW DATABASES in two SHOW DATABASES (list of current databases) and SHOW DATABASE a single string naming the current database
---------
Co-authored-by: Gareth Lloyd <gareth.lloyd@memgraph.io>
* Interpreter transaction ID decoupled from storage transaction ID
* Transactional scope for indices, statistics and constraints
* Storage::Accessor now has 2 modes (unique and shared)
* Introduced ResourceLock to fix pthread mutex problems
* Split InfoQuery in two: non-transactional SystemInfoQuery and transactional DatabaseInfoQuery
* Replicable and durable statistics
* Bumped WAL/Snapshot versions
* Initial implementation of the Lamport clock
---------
Co-authored-by: Andreja Tonev <andreja.tonev@memgraph.io>
Unique/global InterpreterContext that is Storage agnostic (has a reference to the DbmsHandler instead)
* InterpreterContext is no longer the owner of Storage
* New Database structure that handles Storage, Triggers, Streams
* Renamed SessinContextHandler to DbmsHandler and simplified the multi-tenant logic
* Added Gatekeeper and updated handlers to use it
---------
Co-authored-by: Gareth Lloyd <gareth.lloyd@memgraph.io>
* Decouple BoltSession and communication::bolt::Session
* Add CREATE/USE/DROP DATABASE
* Add SHOW DATABASES
* Cover WebSocket session
* Simple session safety implemented via RWLock
* Storage symlinks for backward. compatibility
* Extend the audit log with the DB info
* Add auth part
* Add tenant recovery
* GRANT, REVOKE, DENY and access_checker DONE
* Added AccessChecker to ExecutionContext
* grammar expanded; (#462)
* current
* T0954 mg expand user and role to hold permissions on labels (#465)
* added FineGrainedAccessPermissions class to model
* expanded user and role with fine grained access permissions
* fixed grammar
* [E129 < T0953-MG] GRANT, DENY, REVOKE added in interpreter and mainVisitor (#464)
* GRANT, DENY, REVOKE added in interpreter and mainVisitor
* Commented labelPermissons
* remove labelsPermission adding
* Fixed
* Removed extra lambda
* fixed
* [E129<-T0955-MG] Expand ExecutionContext with label related information (#467)
* added
* Added FineGrainedAccessChecker to Context
* fixed
* Added filtering
* testing
* Added edge filtering to storage, need to add filtering in simple Expand in operator.cpp
* Removed storage changes
* MATCH filtering working
* EdgeTypeFiltering working, just need to test everything again
* Removed FineGrainedAccessChecker
* Removed Expand Path
* Fix
* Tested FineGrainedAccessHandler, need to test AuthChecker
* Added integration test for lba
* Fixed merge conflicts
* PR fix
* fixed
* PR fix
* Fix test
* removed .vscode, .cache, .githooks
* githooks
* added tests
* fixed build
* Changed ast.lcp and User pointer to value in context.hpp
* Fixed test
* Remove denies on grant all
* AuthChecker
* Pr fix, auth_checker still not fixed
* Create mg-glue and extract UserBasedAuthChecker from AuthChecker
* Build fixed, need to fix test
* e2e tests
* e2e test working
* Added unit test, e2e and FineGrainedChecker
* Mege E129, auth_checker tests
* Fixed test
* e2e fix
Co-authored-by: Boris Taševski <36607228+BorisTasevski@users.noreply.github.com>
Co-authored-by: josipmrden <josip.mrden@external-basf.com>
Co-authored-by: János Benjamin Antal <benjamin.antal@memgraph.io>
* Storage takes care of the saving of setting when a new replica is added
* Restore replicas at startup
* Modify interactive_mg_runner + memgraph to support that data-directory can be configured in CONTEXT
* Extend e2e test
* Correct typo
* Add flag to config to specify when replication should be stored (true by default when starting Memgraph)
* Remove un-necessary "--" in yaml file
* Make sure Memgraph stops if a replica can't be restored.
* Add UT covering the parsing of ReplicaStatus to/from json
* Add assert in e2e script to check that a port is free before using it
* Add test covering crash on Jepsen
* Make sure applciaiton crashes if it starts on corrupted replications' info
Starting with a non-reponsive replica is allowed.
* Add temporary startup flag: this is needed so jepsen do not automatically restore replica on startup of main. This will be removed in T0835
* Extend mgp_module with include adding functions
* Add return type to the function API
* Change Cypher grammar
* Add Python support for functions
* Implement error handling
* E2e tests for functions
* Write cpp e2e functions
* Create mg.functions() procedure
* Implement case insensitivity for user-defined Magic Functions.
* Added public interface for registering mgp_trans and extended modules accordingly
* Added test for mgp_trans
* Added mg.transformations() to the module registry
Co-authored-by: János Benjamin Antal <antaljanosbenjamin@users.noreply.github.com>
* Stop the Consumer grafefully when it is destroyed
* Add Streams
* Add Streams to InterpreterContext
* Remove options to limit processed batches in Consumer
* Add Streams unit tests
* Stop waiting for a full batch if the Consumer stopped
* Add ReadLock functionality to Synchronized
* Use per Consumer-based locking
* Replace shared_mutex with RWLock
This PR introduces READ COMMITTED and READ UNCOMMITTED isolation levels.
The isolation level can be set with a config or with a query for different scopes.
* Add LOAD CSV clause infrastructure
* Add LoadCsv operator
* Update csv::Reader class
* Support csv files with and without header
Co-authored-by: jseljan <josip.seljan@memgraph.io>
