Issues

perf(query): a simple CASE runs a subquery or aggregation in its test once per arm, for every row
memgraph/memgraph#4987 · opened on Oct 1, 2026
A subquery in a CASE arm of RETURN or WITH runs for every row, even when no row reaches the arm
memgraph/memgraph#4986 · opened on Oct 1, 2026
A write in a non-last UNION part of a CALL {} body is invisible after the CALL
memgraph/memgraph#4978 · opened on Sep 30, 2026
A unit CALL {} subquery with UNION drops every outer row
memgraph/memgraph#4977 · opened on Sep 30, 2026
Vector search errors on deleted indexed node until restart (Community 3.13.1)
memgraph/memgraph#4975 · opened on Sep 30, 2026
2
fix(query): index scan applies a label filter below ORDER BY/SKIP/LIMIT and returns wrong rows
memgraph/memgraph#4970 · opened on Sep 29, 2026
perf(query): index scan leaves its consumed label in the residual Filter
memgraph/memgraph#4960 · opened on Sep 29, 2026
Support label expressions on relationship types: !, %, & and parentheses
memgraph/memgraph#4955 · opened on Sep 28, 2026
An indexed label disjunction runs its upstream once per label: lost rows and duplicated writes
memgraph/memgraph#4950 · opened on Sep 28, 2026
Flaky test: ResourceLockTest.ReadReleaseWakesBothPendingUniqueAndGatedReader fails then hangs under CPU load
memgraph/memgraph#4942 · opened on Sep 25, 2026
Flaky test: ResourceLockTest.PrioritiseReadOnlyLock fails then hangs under CPU load
memgraph/memgraph#4941 · opened on Sep 25, 2026
A CALL () { } subquery does not see a write made earlier in the same query
memgraph/memgraph#4940 · opened on Sep 25, 2026
A subquery or pattern comprehension does not see a SET made earlier in the same query
memgraph/memgraph#4939 · opened on Sep 25, 2026
Per-transaction isolation level for pooled Bolt drivers (BEGIN/RUN metadata)
memgraph/memgraph#4938 · opened on Sep 25, 2026
CREATE VECTOR INDEX with a missing capacity or dimension returns "An unknown exception occurred" instead of the specific error
Bug
memgraph/memgraph#4922 · opened on Sep 24, 2026
Flaky test: PriorityThreadPool.MultipleLow waits on a task count that does not identify HIGH tasks
memgraph/memgraph#4899 · opened on Sep 22, 2026
Flaky tests: four ResourceLockTest cases fail or hang under CPU load
memgraph/memgraph#4898 · opened on Sep 22, 2026
Flaky test: StorageV2GcMetricsTest...SwapCommitOrder sees 14 unreleased deltas, expects 12
memgraph/memgraph#4889 · opened on Sep 21, 2026
1
When query results change, agents don't fail — they conclude
memgraph/memgraph#4867 · opened on Sep 17, 2026
Durability encoder sends every WAL fragment through the file layer separately
memgraph/memgraph#4864 · opened on Sep 16, 2026
cross_database.duckdb() has no params argument, unlike every other cross_database.* procedure
memgraph/memgraph#4831 · opened on Sep 13, 2026
Regression in 3.11.0: SHOW STORAGE INFO keeps reporting IN_MEMORY_TRANSACTIONAL after a successful switch to IN_MEMORY_ANALYTICAL
memgraph/memgraph#4830 · opened on Sep 12, 2026
STORAGE MODE analytical -> transactional takes 350s on an idle store, while the reverse is instant (3.12.0, 193M edges)
memgraph/memgraph#4824 · opened on Sep 11, 2026
FREE MEMORY reclaims ~0 and memory_tracked stays ~38 GiB above memory_res after heavy delete/update churn (3.12.0, 193M edges)
memgraph/memgraph#4823 · opened on Sep 11, 2026
HA: a live coordinator is reported down by SHOW INSTANCES, flaking test_multiple_failovers_in_row_no_leadership_change
memgraph/memgraph#4811 · opened on Sep 11, 2026
1