orneryd Open Source Projects | Good First Issue

[BUG] Uniqueness constraint violation reported as SyntaxError / TransactionCommitFailed (Neo4j: ConstraintValidationFailed); Bolt connection closed after the failed COMMIT Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 40/100

orneryd/NornicDB#657 · Opened Sep 24, 2026

[BUG] CREATE property value with *, -, ^, % or unary minus is stored as its text ('2 * 3'); + and / are evaluated Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

orneryd/NornicDB#656 · Opened Sep 24, 2026

[BUG] A list literal whose element is a subquery expression ([EXISTS { … }], [COUNT { … }]) evaluates to true instead of a list Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#655 · Opened Sep 24, 2026

[BUG] COUNT { } / EXISTS { } as a SET value, SET += map value or CREATE property value is rejected as SyntaxError Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#653 · Opened Sep 24, 2026

[BUG] COUNT { } / EXISTS { } nested in a list literal, map literal or list-comprehension filter returns wrong values Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

orneryd/NornicDB#652 · Opened Sep 24, 2026

[BUG] CREATE and MERGE never report properties_set or labels_added (always 0; SET counts them correctly) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#651 · Opened Sep 24, 2026

[BUG] Writes inside a correlated CALL subquery (CALL (n) { … } / CALL { WITH n … }) report contains_updates = false and all counters 0 Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#650 · Opened Sep 24, 2026

[BUG] Scoped subquery CALL (n) { SET n:L } fails with 'map literal keys must be valid symbolic names'; CALL (n) { SET n.p = … } returns the old value Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#648 · 1 comment · Opened Sep 24, 2026

[DOCS] GraphQL docs don't say nested JSON properties are now rejected (#633); property docs' 'writes nothing' isn't true in auto-commit/HTTP until #628 Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

orneryd/NornicDB#646 · 1 comment · Opened Sep 24, 2026

[PERF] pipelineApplySet allocates ~1,000 more objects per SET operation since the SET convergence (#582): +4.9% allocs on SetExecutionPaths/residual_handler Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#645 · Opened Sep 24, 2026

[DOCS] Docs Pages build fails on main since 2026-09-23 (broken links in docs/plans/cypher-convergence-plan.md, strict mode): the published docs site is stale Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

orneryd/NornicDB#644 · Opened Sep 24, 2026

[QUESTION] Mixed-type lists and lists containing null are stored as property values; Neo4j rejects both (docs describe mixed lists as supported) Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

orneryd/NornicDB#643 · 1 comment · Opened Sep 24, 2026

[TEST] Three storage tests expect permission errors and fail when run as root (e.g. go test in the golang Docker image) Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

orneryd/NornicDB#642 · 1 comment · Opened Sep 24, 2026

[TEST] Two tests fail on a Windows checkout with core.autocrlf=true: legacy_snapshot.golden and the TCK corpus digest (.gitattributes doesn't pin LF for them) Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

orneryd/NornicDB#641 · 1 comment · Opened Sep 24, 2026

[BUG] MERGE of a relationship pattern reuses an existing node instead of creating the whole pattern (Neo4j creates all unbound nodes when the pattern doesn't match) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#640 · Opened Sep 24, 2026

OPTIONAL MATCH ignores an inline label or property map on an already-bound node variable Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#639 · 1 comment · Opened Sep 24, 2026

MATCH ()-[r:T]->() RETURN count(r) takes seconds on a large store regardless of how many T edges exist (no per-type edge count; Neo4j answers from its counts store) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#638 · 1 comment · Opened Sep 24, 2026

[PERF] Pipeline keyword scanner slower after #608: CypherKalmanProcess +8%, short UNWIND/MERGE +4% Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#635 · 2 comments · Opened Sep 24, 2026

[TEST] TestAuthenticationE2E_LocalhostAndTLSReverseProxy/localhost_HTTP intermittently fails: server Stop exceeds its 5s deadline Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#632 · 1 comment · Opened Sep 24, 2026

[BUG] A list comprehension in a CREATE node property map is stored as its text (['x IN [1, 2] | x * 2']); in a MERGE map it is rejected Open

Difficulty 4/5 3-5 days Newbie friendliness 40/100

orneryd/NornicDB#629 · Opened Sep 24, 2026

[BUG] Server storage stack, auto-commit: a CREATE whose property expression fails stores the text ('1 / 0') with no error, or returns the error but keeps earlier writes Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#628 · 3 comments · Opened Sep 24, 2026

[BUG] After CALL { WITH n SET n.y = … }, the outer RETURN n.y is null (value is stored; outer n not refreshed) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#627 · Opened Sep 24, 2026

[BUG] MATCH … FOREACH: a MERGE … ON CREATE SET body writes nothing and returns no rows; a body with two update clauses is rejected Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#621 · 2 comments · Opened Sep 24, 2026

[BUG] Relationship MERGE does not match an existing node by a list-valued property and creates a duplicate node and relationship Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#618 · 1 comment · Opened Sep 24, 2026

[BUG] WITH … ORDER BY with STARTS WITH / ENDS WITH / CONTAINS / IS NULL fails: 'variable STARTS is not defined' (RETURN … ORDER BY works) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#612 · Opened Sep 24, 2026

[BUG] Any clause other than RETURN/ORDER BY/SKIP/LIMIT after CALL { … } is rejected: 'unsupported clause after CALL {}: WITH' (also UNWIND, MATCH) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#611 · Opened Sep 24, 2026

[BUG] =~ evaluates to null in RETURN / WITH projections (literal, property, variable); ORDER BY on it doesn't sort (WHERE, CASE and SET are correct) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#610 · Opened Sep 24, 2026

[TEST] Plugin tests fail under go test -race: test plugins are built without -race (plugin was built with a different version of package) Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

orneryd/NornicDB#607 · 1 comment · Opened Sep 24, 2026

[TEST] TestDBWrapperHelpers_EmbeddingAndPendingCounts reassigns db.baseStorage while the clustering timer reads it (intermittent -race failure) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#606 · Opened Sep 24, 2026

[TEST] TestEmbedQueueDebounceAndHelpers debounce subtest shares a slice with the timer goroutine without synchronization (-race fails every run) Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

orneryd/NornicDB#605 · Opened Sep 24, 2026

[BUG] search.Service.MarkReadyDisabled swaps fulltextIndex without a lock; races with concurrent readers and a second call from the background index build Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#604 · Opened Sep 24, 2026

[BUG] EmbedWorker.worker reads the embedder field without the lock while SetEmbedder writes it (data race at startup) Open

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

orneryd/NornicDB#603 · Opened Sep 24, 2026

[BUG] keys(n) of a node created in the same statement comes back in a random order on every execution (sorted on every other route) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#602 · 1 comment · Opened Sep 24, 2026

[BUG] RETURN size(null) is rejected: 'could not parse RETURN expression' (Neo4j: null) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#601 · Opened Sep 24, 2026

[BUG] size() of a map or node returns null instead of a type error (size(properties(n)), size(n)); literal forms fail as 'could not parse' Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#600 · Opened Sep 24, 2026

[PERF] Compiled WHERE wraps every leaf predicate in a three-valued lift/lower pair since #566: +17% on FilterBindingsByWhere_GenericFallback Open

Difficulty 4/5 3-5 days Newbie friendliness 40/100

orneryd/NornicDB#599 · Opened Sep 24, 2026

[PERF] Duplicate-RETURN-column check (1f695f67) re-parses RETURN twice per statement and again in every nested execution: +45 / +249 allocs on CALL-subquery UNION benchmarks Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#591 · Opened Sep 24, 2026

[PERF] validateMembershipParameters (#537 fix) upper-cases a copy of every parameterised query: +1 alloc per statement, +7–9% on small statements Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#592 · Opened Sep 24, 2026

[BUG] OPTIONAL MATCH p = shortestPath(…) ignores RETURN and always returns one row {result: null}; after a MATCH it fails with 'invalid traversal pattern' Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

orneryd/NornicDB#581 · Opened Sep 24, 2026

[BUG] labels()/type() on a literal in WHERE, WITH … WHERE or nested in CASE/size() is not rejected: filters everything out silently (projection case fixed by #565) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#580 · Opened Sep 24, 2026

[BUG] HTTP transaction commit URL always points to localhost (configured listen address), not the request host; no Location header Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#578 · Opened Sep 24, 2026

[BUG] HTTP row format returns nodes/relationships as {elementId, labels, properties} objects instead of Neo4j's plain property maps Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#577 · Opened Sep 24, 2026

[BUG] HTTP includeStats returns only contains_updates on /tx/commit and null inside explicit transactions; no nodes_created / properties_set / … counters Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#576 · Opened Sep 24, 2026

[BUG] HTTP /tx/commit returns every statement error with code SyntaxError (real code only inside the message); the explicit-transaction endpoint and Bolt are correct Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

orneryd/NornicDB#575 · Opened Sep 24, 2026

[BUG] CALL … YIELD … RETURN … LIMIT <expression> (e.g. LIMIT 0 + 1) returns no rows; literal LIMIT works (route not covered by #533) Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#572 · Opened Sep 24, 2026

[BUG] Backtick-quoted alias with a space fails in ORDER BY after DISTINCT ('variable the is not defined') and when re-projected in WITH Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

orneryd/NornicDB#573 · 1 comment · Opened Sep 24, 2026

[BUG] Any UNION branch with LIMIT or SKIP fails: 'LIMIT requires an expression independent of row variables' (even LIMIT 1) Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

orneryd/NornicDB#571 · Opened Sep 24, 2026

[BUG] HTTP API decodes every integer parameter as float64: large IDs are stored rounded, SKIP $n / range(1, $n) fail, $a / 2 is fractional Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

orneryd/NornicDB#570 · Opened Sep 24, 2026

perf: node MATCH candidates stream the whole namespace through multidb.sizeTrackingEngine.StreamNodes since 7bccfec5 (label and relationship-type scans grow with total store size) Open

Difficulty 4/5 3-5 days Newbie friendliness 40/100

orneryd/NornicDB#561 · Opened Sep 24, 2026

[TECH DEBT] Code paths that implement the same behaviour differently, with no reproduced user-visible effect (drift risks, grouped by component) Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

orneryd/NornicDB#547 · Opened Sep 24, 2026

orneryd

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