feat: version the indexed-axis family; fallible, direction-aware merges - #801
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📝 WalkthroughWalkthroughQuery merging now rejects nested read modes and supports versioned direction validation. Indexed-axis reads and proofs now use explicit GroveDB operation versions. Existing tests pass version arguments and cover the new merge semantics and version gates. ChangesVersioned query merging and indexed-axis operations
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🟡 Moderate · up to Public query-merge paths can silently drop read modes, changing query semantics. The PR should not merge until all public branch paths reject these inputs consistently and direct coverage is added. Sequence Diagram(s)sequenceDiagram
participant Client
participant PathQuery
participant Query
participant GroveVersion
Client->>PathQuery: merge path queries
PathQuery->>GroveVersion: read merge version
PathQuery->>Query: call version-selected merge
Query-->>PathQuery: merged query or error
PathQuery-->>Client: return merge result
sequenceDiagram
participant Client
participant GroveDB
participant GroveVersion
participant IndexedAxisProof
Client->>GroveDB: request indexed-axis proof operation
GroveDB->>GroveVersion: validate operation version
GroveDB->>IndexedAxisProof: generate or verify proof
IndexedAxisProof-->>GroveDB: proof result
GroveDB-->>Client: return operation result
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches 💡 1⚔️ Resolve merge conflicts 💡
📝 Generate docstrings
🧪 Generate unit tests (beta)
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This is Claude. Rebased onto The commit replayed cleanly; two call-site fixes were needed against the new base, both consequences of this PR's own change meeting work that landed since:
Validation on the rebased head: Ready for review. #802 (book chapter) is next in the stack and will be rebased on top once this merges. |
Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## develop #801 +/- ##
===========================================
+ Coverage 92.15% 92.18% +0.03%
===========================================
Files 267 267
Lines 81285 81565 +280
===========================================
+ Hits 74908 75192 +284
+ Misses 6377 6373 -4
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This is Claude. Addressed the codecov failure — patch coverage 59.4% → 98.8% (170/172 new lines). The gap was that this PR adds fourteen version gates but tested one of them.
Per-file: Two new lines remain uncovered — the Validation: |
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Inline comments:
In `@grovedb-query/src/merge.rs`:
- Line 19: Update grovedb-query/src/merge.rs:19-19 in SubqueryBranch::merge to
validate nested read modes before calling merge_with_unchecked; update
grovedb-query/src/merge.rs:248-248 in Query::merge_default_subquery_branch to
reject read modes before merging default branches; revise the contract comment
at grovedb-query/src/merge.rs:537-539 to reflect validation by all public
branch-merge paths, and add direct tests covering default and conditional merges
with ReadMode::Axis and ReadMode::SumBudget.
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Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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📒 Files selected for processing (20)
grovedb-query/src/merge.rsgrovedb-query/tests/merge_coverage.rsgrovedb-query/tests/query_terminal_and_merge.rsgrovedb-version/src/version/grovedb_versions.rsgrovedb-version/src/version/v1.rsgrovedb-version/src/version/v2.rsgrovedb-version/src/version/v3.rsgrovedb-version/src/version/v4.rsgrovedb/src/operations/indexed_tree.rsgrovedb/src/operations/proof/indexed_axis/axis_api.rsgrovedb/src/operations/proof/indexed_axis/generate.rsgrovedb/src/operations/proof/indexed_axis/verify.rsgrovedb/src/query/mod.rsgrovedb/src/tests/axis_descent_proof_tests.rsgrovedb/src/tests/coverage_round7_tests.rsgrovedb/src/tests/indexed_axis_nested_and_bounds_tests.rsgrovedb/src/tests/indexed_axis_offset_proof_tests.rsgrovedb/src/tests/indexed_axis_proof_tests.rsgrovedb/src/tests/merge_versioning_tests.rsgrovedb/src/tests/mod.rs
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I found two correctness gaps in the new merge and indexed-axis version boundaries; details inline.
Two coordinated breaking changes for the rs-drive workspace bump, per the unified-PathQuery plan. Indexed-axis versioning. The standalone indexed-axis family shipped entirely outside grove_version: no slots, and verifiers that take no GroveVersion at all. A new GroveDBOperationsIndexedAxisVersions struct adds read / prove_single_path / verify_single_path slots (all 0 in V1..V4 — availability is not the point; the slots exist so the first future divergence bumps a number instead of forking silently), the five generic verifiers and their twelve per-axis wrappers gain a GroveVersion parameter with the check, the five provers gain the prove_single_path gate, and the trusted-read helpers gain the read gate at their generic chokepoints. Merge semantics. Query::merge_multiple and merge_with become fallible: both reject inputs carrying a ReadMode at any nesting level — axis and sum-budget reads have no defined merge semantics, and merging them silently as key selection would change what a query means. The merge bodies move to private _unchecked twins so the recursive internals (whose inputs are descendants of already-checked queries) stay infallible. A new Query::merge_multiple_directional additionally requires top-level direction agreement. PathQuery::merge gains the direction fix behind path_query_methods .merge = 1 (GROVE_V4): every input must agree on left_to_right (typed error on conflict) and the shared direction propagates to the merged root — previously input directions were silently dropped, with sub-level merges taking the synthesized root's default. V1..V3 keep the historic behavior exactly; merged queries feed proofs and the verifier re-runs the same merge with the same grove version, so both sides agree at every version. Tests: direction agreement/conflict/propagation at V4, the preserved pre-V4 quirk pinned, Query-level read-mode merge rejection (direct and nested), and unknown-slot rejection through a doctored GroveVersion. Full suites, clippy, and the verify-only build green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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… part 1) (#808) * refactor: rename the range-aggregate family to aggregate_over_value_range Mechanical, no behavior change: ident range_aggregate -> aggregate_over_value_range and type RangeAggregate -> AggregateOverValueRange across grovedb-query, grovedb, and the book. Wire tag 3 is unchanged. Groundwork for the explicit AggregateFold (issue #806): the name stops implying that the count axis totals its values, and the fold field lands next to make the distinction explicit rather than documented. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * feat: explicit AggregateFold on the value-range aggregate (issue #806, part 1) Tag 3 becomes AggregateOverValueRange { lo, hi, fold } with AggregateFold { Population = 0, Total = 1 } as a frozen wire byte. The caller now SAYS which scalar they mean — the count-axis misread ("aggregate over a band" read as "total of the counts") becomes unexpressible instead of documented, and the 2x2 (axis x fold) matrix is uniform: count+Population existing behavior (bucket population) sum+Total existing behavior (total of the sums) sum+Population ENABLED here — the sum secondary is already PCPS, so its count aggregate answers "how many entries fall in this sum band" with zero merk changes count+Total typed NotSupported naming issue #806 at every surface (trusted read, embedded prover/verifier, standalone prover/verifier) until part 2 makes the count secondary sum-bearing Prover/verifier agreement is structural now: the byte range follows the AXIS, the walker follows the FOLD, and one shared builder (build_aggregate_secondary_proof) reuses the verifier's own count/sum_aggregate_inner_range reconstructors — collapsing four builders and three duplicated clamp/degenerate/out-of-domain sites into functions that cannot drift. The standalone envelope echoes the fold and the verifier authenticates the echo (fold mismatch = CorruptedData). The embedded path carries no fold in the payload ON PURPOSE: PCPS secondaries commit dual (count, sum) aggregates in every node hash, so one proof serves both questions and the query is the sole source of the fold — the_fold_lives_in_the_query_not_the_embedded_proof pins that cross-feeding yields each question's own CORRECT answer under the genuine root, not a rejection and not a confusion. Trusted reads gain indexed_sum_population_over_value_range (version gate ahead of the degenerate-range fast path, per the #801 review finding); PathQueryRun's AxisAggregateValue variants are renamed Count/Sum -> Population/Total to match. AxisQuery::validate rejects both folds on the Avg axis. Unknown fold bytes fail closed at decode. All V4-gated and pre-activation: no migration, no new version slots. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix: stop advertising count+Total; cover the refusal arms and the run dispatch Review findings on the fold PR, both fixed at the source: - The variant, constructor, and verified-result docs claimed every (axis, fold) cell works — including the count+Total "answers 8" example — while every execution surface refuses that cell until #806 part 2. The docs now state the refusal explicitly (vocabulary stays stable and serializable ON PURPOSE: part 2 is stacked next and turns the cell on without a grammar change; only the paragraph documenting the gap gets deleted). The verified-result doc also still described the pre-fold axis-default reading — it now follows the FOLD, per CodeRabbit's catch. Coverage (local llvm-cov 93.8% patch; the gaps that were real): - run_path_query's (Sum, Population) arm had no test through the dispatch — differential vs the trusted reader added, plus the reader's inverted-bounds and hi = i64::MAX branches. - The DESCENT verifier's count+Total refusal is now reached the way a confused client would reach it: a genuine count+Population proof against a count+Total query (the fold lives in the query). - The STANDALONE verifier's inner count+Total refusal is reached by relabeling a genuine count envelope's fold echo to Total — the echo check passes, so the inner arm is what must stop it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * docs: Population counts entries, not distinct values Two entries sharing an axis value are two nodes of the secondary (keyed sort_key ‖ original_key) and count as 2. The round-trip test already proved it — alice and dave both sit at 40 and the band answers 4, not 3 — the comment now says that is the property being asserted. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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The merge compiled the lib but not the test binaries — the paginated readers' new page shape reaches nine call sites across axis_descent_proof_tests, run_path_query_tests, and the paginated cost suite (which also needed #801's GroveVersion param on the verify side). Bounded/range reader call sites are untouched: those still return plain vecs. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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* docs: record the counted-skip design for unproved ranked reads
Unproved ranked reads walk the OFFSET linearly
(indexed_axis_top_k_paginated_generic), one iterator step and one decode
per skipped entry, while the proved path skips whole subtrees via
count-bound node commitments. Measured 457ms at OFFSET 4e9 unproved
versus 38us proved.
The fix chosen for this repo was to give the read path the same counted
descent. Investigating it established that no non-proof counted-skip
primitive exists in merk at all: the counted descent lives only inside
the proof emitter (proofs/query/count_offset/emit.rs), so the change is
an extraction plus a new read-only entry point, not a wiring job. That
finding is what reshaped the decision - the work was deferred in favour
of a Platform-side mitigation (serve unproved reads through the prover
internally and verify the proof to recover entries), which needs no
grovedb change and measured 78-129us round trip, with the deep-offset
lever flat at 48us.
This note is the record of the proper long-term fix so it can be picked
up cold: which decisions in emit.rs are shareable and which must not
move, the shape of Merk::read_count_offset_on_range, the argument that
the extraction leaves proof bytes bit-identical plus the golden-digest
test strategy that would prove it, an OperationCost assertion that
distinguishes a counted skip from a linear one, the risk list, and three
open questions that must be answered before any code is written.
Documentation only - no behaviour change, so no test.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* feat: counted offset skip for unproved ranked paginated reads
Replace the linear offset walk in indexed_axis_top_k_paginated_generic
(one storage-iterator step per skipped entry, Θ(min(offset, N))) with a
counted descent over the secondary merk through the public Merk::walk:
whole subtrees are consumed from their parents' link aggregate counts
without ever being fetched, so a positive offset costs one
root-to-position path (O(log n) node loads) plus the k-collect. The
offset == 0 path keeps the raw storage iterator, now shared structurally
with the plain top_k core (collect_top_k_via_iterator), so the common
shape is untouched by construction. offset >= population is answered
from the root aggregate alone with zero fetches. All three axes (count,
sum, avg) funnel through the one changed generic.
Proof bytes are unchanged by construction: no file under merk/ and no
proof module is touched; the new code calls only read-only public
traversal APIs, and every existing proof suite passes with zero edits.
Hardening from review: strict provable-count aggregate matching (never
as_count_u64's silent 0), own-count == 1 payload check, link-vs-child
aggregate cross-check on every descent, present-but-zero-count link
rejection, and a 128-level depth ceiling so cyclic link corruption
errors instead of overflowing the stack. All corruption paths return
Error::CorruptedData; no panic, no u64 wrap.
Behavioral delta, deliberate: skipped rows are no longer decoded, so a
malformed key inside the skipped region no longer errors the read (it
still occupies its counted position; returned rows are still validated,
and verify_grovedb still flags the state). The drift-suite assertion
pinning the old decode-during-skip behavior was updated to pin the new
contract — the only edited existing test.
Test would have caught this in CI: ✖ before fix, ✔ after.
paginated_offset_skip_is_counted_not_linear failed on the pre-change
code with "seek_count 604 at offset 595 vs 9 at offset 0 (depth bound
14)" and passes after; equality grids (3 axes x both directions x
offset/k boundaries x tie-heavy fixtures) pass before and after, and
paginated_offset_zero_costs_exactly_plain_top_k pins offset-0 cost
equality with plain top-k in both directions.
Measured (release, measure_paginated_costs harness; k=1): offset 0 is
identical to the old read at every N (5 seeks / 625 B / ~6 us); deep
offset at N=1e6 is 22 seeks / 3.7 KB / 32 us vs 1,000,004 seeks /
316 MB / 326 ms linear; past-the-end is flat 3 seeks / 366 B / 4 us at
every N. Known accepted corner: offset=1 k=100 costs ~150 us vs the old
~30 us (point-gets vs sequential iteration; near-identical counters),
crossing over to counted-wins around offset ≈ a few hundred.
* feat: report the true skipped count from unproved paginated ranked reads
The three indexed_<axis>_top_k_paginated APIs now return
IndexedTopKPage { entries, skipped } instead of a bare Vec, where
skipped = min(offset, population) — read from the secondary's root
aggregate at zero extra cost. The old linear read structurally could not
report this (an offset past the end just exhausted the iterator and the
caller could only echo the request); the proved path already attests
exactly this quantity through its count commitments (its verifier
derives skipped = offset - offset_remaining over the same provable-count
aggregates), so unproved and proved reads now agree on it. Like the
entries, the unproved value is the local tree's claim, not
independently verifiable.
offset = 0 reports skipped = 0 without touching the tree, keeping the
fast path fast; empty secondaries report 0; k = 0 and past-end offsets
report min(offset, population). Pinned across the equality grids, the
cost tests, the empty-secondary test, and the measurement harness
(skipped == min(offset, n) asserted at every n/k/offset point,
including offset = 4e9 over 1e6 rows).
Callers updated mechanically (.entries); the only consumer of the old
shape was the test suite.
* fix: gate the IndexedTopKPage re-export on minimal, not minimal-or-verify
The re-export at lib.rs was gated on any(minimal, verify) while the
module it names, operations::indexed_tree, is gated on minimal alone, so
a verify-without-minimal build failed to compile:
error[E0432]: unresolved import `operations::indexed_tree`
note: found an item that was configured out
That cut is drive's verifier-only build in Platform
(cargo check -p drive --no-default-features --features verify), which is
how it surfaced.
Narrow the export to match the module rather than widening the module to
match the export: the only APIs that produce an IndexedTopKPage are the
three paginated indexed-axis reads, which need storage and are therefore
minimal-only. A verify build consumes proofs and can never name the type.
Red before / green after with the feature cut that reproduces it:
cargo check -p grovedb --no-default-features --features verify failed
with the E0432 above and now compiles. No permanent test is added
because the guard already exists and is not a unit test — .github/
workflows/grovedb.yml runs 'cargo build --no-default-features --features
verify -p grovedb' for exactly this. It did not catch this commit
because the branch has never been pushed, so CI has never run on it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* test: pin that the unproved skipped equals the proved path's attested skipped
Platform exposes RankedPage::skipped on the wire from both the proved
and unproved paths, and a client cannot tell which one served it, so the
two must report the same quantity for the same request. Nothing
structural held them in step: the proved side re-derives skipped from
the counted subtree commitments in the proof bytes, the unproved side
reads the secondary's root aggregate.
Assert across offsets {0, 1, 5, pop-1, pop, pop+1, 4e9} x k {0, 1, 3} x
both directions that the two skipped values match, that both equal
min(offset, population) — equality alone would be satisfied by two
identically wrong values — and that the entries match too.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* test: cover the legacy baseline and the counted path's returned-row decode refusal
Two additions closing the honest part of the codecov patch gap:
- An always-on differential test pinning that the counted path returns
identical entries to the pre-change linear implementation (kept
verbatim as the test-only measurement baseline, previously exercised
only by the ignored release harness) across offsets, k values, and
both directions at a CI-affordable size.
- A drift-suite case making the malformed row the RETURNED position of
a counted read (ascending, offset 2), asserting CorruptedData: skipped
rows go undecoded by design, returned rows never do. This pins the
"returned rows are still validated" half of the counted-skip contract,
which was previously asserted only through the iterator path.
The remaining uncovered patch lines are corruption fail-loud guards
(zero-count link, depth cap, link-vs-child count mismatch, walk-None,
non-provable-count aggregate, defensive second-child skip) that an audit
verified are not constructible through any supported write path; they
stay uncovered rather than deleted, weakened, or reached by forging
states no writer can produce. No coverage exclusions added.
* fix: serve the whole counted page from one pinned iterator view
Blocking Platform review finding, independently confirmed: the counted
descent fetched children through successive RefWalker point-gets on a
snapshotless transaction (start_transaction is a bare db.transaction()),
so a block committing mid-descent could hand back a child from a newer
state than its resident parent. Merk's child loads never verify the
fetched child against the parent's recorded link hash, and the aggregate
count cross-checks cannot see a same-population update, so the result
was a silently mixed page — where the replaced linear scan, driven by a
single KVIterator, pinned one consistent view for its whole page. The
proved path survives the same torn reads only because verification's
ancestor-chain reconciliation rejects them; the unproved read has no
such check.
The counted walk now fetches every node — root re-read, descent, and
collect — through one raw iterator over the secondary's storage context
(seek by node key + decode via the public TreeNode::decode). A RocksDB
transaction iterator pins an implicit snapshot of committed state plus
the transaction's own uncommitted writes: the same guarantee, from the
same mechanism, the pre-change implementation had. RefWalker leaves the
walk entirely; the decision logic, fail-loud guards (own-count,
link/child cross-check, zero-count link, depth cap), and cost accounting
are unchanged in substance. The open-to-iterator window can at worst
produce a loud CorruptedData (root key moved), never a mixed page.
The transaction-overlay half of the property is pinned by a new
always-on test (rows inserted in an open transaction are visible and
counted through it, invisible outside it). The commit-interleaving half
is not deterministically testable — the read is one synchronous call
with no way to pause between fetches — and rests on RocksDB's
iterator-snapshot contract, exactly as the replaced implementation's
guarantee did; stated in the test and design doc rather than implied.
Cost impact, re-measured in release at 1e6 rows: offset 0 unchanged
(5 seeks / 629 B); deep offset 23 seeks / 32 us (one extra seek for the
root re-read); past-the-end 4 seeks / 7 us, still flat at every N.
* fix: discover the secondary root key inside the counted read's pinned view
Second-round review finding on the snapshot fix, verified: root-key
DISCOVERY still ran outside the pinned view. The validated open read
secondary_root_key from the parent element through the snapshotless
transaction, and only afterwards did the counted read create its pinned
iterator and re-fetch the node at that key. A commit rotating the
secondary AVL root in that window could leave the old root key resolving
in the newer snapshot as a DEMOTED CHILD — an internally consistent
subtree that passes every count check, so the traversal would serve it
as the complete ranking: entries and skipped silently truncated. The
absent-root guard only caught the case where the old key vanished
entirely; a wrong answer that verifies is exactly the failure class this
read must not produce.
The read is now pinned end to end. One raw iterator is created under the
parent merk's prefix, re-reads the indexed element to obtain the
authoritative secondary root key (re-validating the element variant and
axis in-view via the extraction helper now shared with the merk-backed
reader), is retargeted to the secondary's prefix — a new consuming
PrefixedRocksDbRawIterator::retarget that keeps the underlying iterator
and therefore its snapshot — and then serves the root fetch, descent,
and collect. Nothing the page is built from is read outside that one
view. The ordinary validated open still runs first, purely for
validation and the offset-0 fast path; none of its loads are trusted as
page data.
Cost, re-measured in release at 1e6 rows, k=1: offset 0 unchanged
(5 seeks / 629 B / 7 us); deep offset 24 seeks / 32 us (+1 seek for the
in-view element re-read); past-the-end 5 seeks / 9 us, flat at every N.
The cost test's past-end bound now budgets the two pinned-view discovery
reads explicitly.
* fix: clamp the counted page's pre-allocation; align doc prose with measured table
Two review findings. The page vector's capacity derived from
caller-supplied limit and the on-disk root aggregate, so a huge k (or a
forged aggregate) could reserve memory the page can never fill on a
public read path — the capacity hint is now clamped at 1024 entries and
the vector grows only by actually being filled. The design doc's prose
bullets still quoted pre-snapshot figures; they now carry the measured
numbers of the fully-pinned implementation (deep-offset seeks
13/17/20/24 across 1e3..1e6 rows, past-the-end flat at 5 seeks at every
N), matching the table.
* test: pin that a dangling secondary root key fails loud through the counted path
A parent element whose secondary_root_key names a node that does not
exist is corruption the counted read must refuse, never serve as an
empty or truncated page — the pinned view read the element itself, so
the dangling key is not a race to retry through. Constructed honestly
via the drift suite's rebind machinery (element rebound with a bogus
root key, rows and hashes otherwise intact); also pins the contrast that
the offset-0 iterator path, which never consults the root key, still
reads the physical rows.
This is the one remaining counted-path guard that drift surgery can
reach; it also carries the indexed-tree codecov patch component over its
82% gate (the pinned-view rewrite had landed at 81.99%).
* fix: adapt the unified-stack test suites to IndexedTopKPage
The merge compiled the lib but not the test binaries — the paginated
readers' new page shape reaches nine call sites across
axis_descent_proof_tests, run_path_query_tests, and the paginated cost
suite (which also needed #801's GroveVersion param on the verify
side). Bounded/range reader call sites are untouched: those still
return plain vecs.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Quantum Explorer <quantum@dash.org>
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Context
PR 6 of the unified PathQuery effort (stacked on #800 ← #799 ← #798 ← #797 ← #795). Two coordinated breaking changes for the rs-drive workspace bump — the last code PR of the sequence before the book chapter.
Indexed-axis versioning
The standalone indexed-axis family shipped entirely outside
grove_version: no slots, and verifiers that take noGroveVersionat all. This PR brings it in:GroveDBOperationsIndexedAxisVersions { read, prove_single_path, verify_single_path }— all0in V1–V4. Availability isn't the point (indexed trees can't exist in pre-V4 data anyway); the slots exist so the first future divergence bumps a number instead of forking silently.verify_indexed_axis_*functions and their twelve per-axis wrappers gain aGroveVersionparameter + check — the breaking part (~205 call sites migrated in-repo; precedent: the aggregate verifiers already take it under verify-only builds).prove_single_pathgate; the trusted-read helpers gain thereadgate at their generic chokepoints.Merge semantics
Query::merge_multiple/merge_withbecome fallible: both reject inputs carrying aReadModeat any nesting level — axis and sum-budget reads have no defined merge semantics, and silently merging them as key selection would change what a query means. The merge bodies move to private_uncheckedtwins, so the recursive internals (whose inputs are descendants of already-checked queries) stay infallible — one check at the public boundary, no ripple.Query::merge_multiple_directional: additionally requires top-level direction agreement.PathQuery::mergedirection fix behindpath_query_methods.merge = 1(GROVE_V4): every input must agree onleft_to_right(typed error on conflict) and the shared direction propagates to the merged root. The fix matters because the historic behavior is worse than the known "first wins" description: for inputs at different paths, the merged root is a synthesized query whose direction is the default — input directions were dropped entirely. V1–V3 keep that behavior exactly (pinned by test); merged queries feed proofs and the verifier re-runs the same merge with the same grove version, so both sides agree at every version.Tests
Direction agreement / conflict / propagation at V4; the pre-V4 quirk pinned as-is; Query-level read-mode merge rejection (direct and nested); unknown-slot rejection via a doctored
GroveVersion. Full suites green, clippy clean, verify-only build green (onecfgfix on the known-fragile verify boundary, caught by the required build).🤖 Generated with Claude Code
Summary by CodeRabbit
New Features
Bug Fixes