Commit Graph

7 Commits

Author SHA1 Message Date
andrejtonev
071df2f439
Replication refactor part 7 (#1550)
* 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

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Co-authored-by: Gareth Lloyd <gareth.lloyd@memgraph.io>
2024-01-23 12:06:10 +01:00
Josipmrden
d58a464141
Remove filter profile info (#1481) 2023-12-03 21:23:52 +01:00
Ante Pušić
3158a16ffd
Add filtering details to EXPLAIN and PROFILE (#1265) 2023-10-25 21:36:20 +02:00
Josipmrden
be16ca7362
Add cartesian and hash join operators (#1193) 2023-10-24 21:54:42 +02:00
andrejtonev
e8850549d2
Add multi-tenancy v1 (#952)
* 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
2023-08-01 18:49:11 +02:00
Josipmrden
84721f7e0a
Add vertex degree to index statistics (#1026)
Add graph analysis of vertex degrees when doing ANALYZE GRAPH.
2023-06-27 18:06:20 +02:00
Josipmrden
398503da7a
Add index statistics for better query planning (#812) 2023-03-30 15:34:34 +02:00