Fix: aggregate() ignored take/skip/cursor/distinct - #30067
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📝 WalkthroughWalkthroughThe SQL ORM now scopes aggregates to the complete collection state, including pagination, cursors, ordering, and distinct selections. ChangesSQL ORM query scoping
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🟡 Moderate · up to This change makes aggregate results honor pagination and distinct row scope, while also changing unsupported distinctOn behavior and SQLite offset rendering. Merge readiness remains moderate because the capability check may still allow unsupported DISTINCT ON execution, certain cursor/orderBy combinations may produce an empty filter, and the upgrade detector can issue migration guidance for unrelated APIs. Sequence Diagram(s)sequenceDiagram
participant CollectionImpl
participant compileAggregate
participant query_plan_scope
participant SQLAdapter
CollectionImpl->>compileAggregate: pass complete CollectionState
compileAggregate->>query_plan_scope: build filters, cursors, joins, and deduplication
query_plan_scope-->>compileAggregate: return scoped derived SELECT
compileAggregate->>SQLAdapter: execute aggregate over scoped rows
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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🧪 Generate unit tests (beta)
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Inline comments:
In `@packages/3-extensions/sql-orm-client/src/collection-contract.ts`:
- Around line 600-601: Update the distinctOn capability check in the surrounding
contract-lowering logic to require contract.capabilities.postgres?.distinctOn
=== true rather than the generic hasContractCapability lookup. Preserve support
for the documented PostgreSQL capability shape and add a regression test
confirming legacy projection.distinctOn does not enable DISTINCT ON.
In `@packages/3-extensions/sql-orm-client/src/query-plan-scope.ts`:
- Around line 86-117: Update buildCursorWhere to handle entries.length === 0
after filtering non-column orderBy expressions, returning undefined or raising
ORM.CURSOR_VALUE_MISSING instead of calling buildLexicographicCursorWhere with
an empty list; preserve the existing single-entry and lexicographic paths for
non-empty entries.
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⛔ Files ignored due to path filters (18)
packages/3-extensions/sql-orm-client/test/__snapshots__/aggregate-plan-baseline.test.ts.snapis excluded by!**/*.snapprojects/aggregate-pagination/plan.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/01-baseline-snapshot.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/02-lift-row-scope.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/03-root-pagination.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/04-root-distinct.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/04b-variant-join.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/04c-distincton-capability-gate.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/05-integration-values.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/05b-sqlite-offset-renderer.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/06-tsdoc-position-semantics.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/manual-qa-reports/2026-08-18-qa-runner.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/manual-qa.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/plan.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/slice-close.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/spec.mdis excluded by!projects/**projects/aggregate-pagination/spec.mdis excluded by!projects/**projects/aggregate-pagination/trace.jsonlis excluded by!projects/**
📒 Files selected for processing (20)
docs/architecture docs/subsystems/3. Query Lanes.mdpackages/3-extensions/sql-orm-client/src/collection-contract.tspackages/3-extensions/sql-orm-client/src/collection.tspackages/3-extensions/sql-orm-client/src/query-plan-aggregate.tspackages/3-extensions/sql-orm-client/src/query-plan-scope.tspackages/3-extensions/sql-orm-client/src/query-plan-select.tspackages/3-extensions/sql-orm-client/test/aggregate-pagination.test.tspackages/3-extensions/sql-orm-client/test/aggregate-plan-baseline.test.tspackages/3-extensions/sql-orm-client/test/collection-contract.test.tspackages/3-extensions/sql-orm-client/test/distinct-on-capability.test-d.tspackages/3-extensions/sql-orm-client/test/distinct-on-capability.test.tspackages/3-extensions/sql-orm-client/test/generated-contract-types.test-d.tspackages/3-extensions/sql-orm-client/test/query-plan-aggregate.test.tspackages/3-extensions/sql-orm-client/test/variant-include.query-plan-aggregate.test.tspackages/3-targets/6-adapters/sqlite/src/core/adapter.tspackages/3-targets/6-adapters/sqlite/test/adapter.test.tsscorecard/06-sql-orm-client.mdtest/integration/test/sql-orm-client/aggregate-sqlite.test.tstest/integration/test/sql-orm-client/aggregate.test.tstest/integration/test/sql-orm-client/self-relations-matrix.test.ts
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@prisma/orm-extension-arktype-json
@prisma/orm-extension-middleware-cache
@prisma/orm-extension-paradedb
@prisma/orm-extension-pgvector
@prisma/orm-extension-postgis
@prisma/orm-extension-supabase
@prisma/orm-family-mongo
@prisma/orm-family-sql
@prisma/orm-framework
@prisma/orm-mongo
@prisma/orm-postgres
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@prisma/orm-target-mongo
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Inline comments:
In
`@skills/prisma-8-extension-upgrade/upgrades/8.0.0-rc.3-to-8.0.0-rc.4/instructions.md`:
- Around line 126-130: The migration guidance for `.distinctOn(...)` must not
present accepting undeduped rows as the default. Update the instructions around
`.distinctOn(...)` and `postgres.distinctOn` so removal is allowed only when
duplicates are acceptable; otherwise require moving to a PostgreSQL-capable
contract or a reviewed query rewrite. Mention `distinct()` only as a portable
alternative when its semantics match the original query.
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Inline comments:
In
`@skills/prisma-8-extension-upgrade/upgrades/8.0.0-rc.4-to-8.0.0-rc.5/instructions.md`:
- Around line 18-21: Update the detector configuration for the distinctOn
migration to target the documented Collection receiver rather than every
`.distinctOn(...)` call; use receiver-aware matching if supported, otherwise
explicitly document that the broad scan requires manual API identification.
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⛔ Files ignored due to path filters (18)
packages/3-extensions/sql-orm-client/test/__snapshots__/aggregate-plan-baseline.test.ts.snapis excluded by!**/*.snapprojects/aggregate-pagination/plan.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/01-baseline-snapshot.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/02-lift-row-scope.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/03-root-pagination.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/04-root-distinct.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/04b-variant-join.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/04c-distincton-capability-gate.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/05-integration-values.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/05b-sqlite-offset-renderer.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/dispatches/06-tsdoc-position-semantics.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/manual-qa-reports/2026-08-18-qa-runner.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/manual-qa.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/plan.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/slice-close.mdis excluded by!projects/**projects/aggregate-pagination/slices/aggregate-row-scope/spec.mdis excluded by!projects/**projects/aggregate-pagination/spec.mdis excluded by!projects/**projects/aggregate-pagination/trace.jsonlis excluded by!projects/**
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docs/architecture docs/subsystems/3. Query Lanes.mdpackages/3-extensions/sql-orm-client/src/collection-contract.tspackages/3-extensions/sql-orm-client/src/collection.tspackages/3-extensions/sql-orm-client/src/query-plan-aggregate.tspackages/3-extensions/sql-orm-client/src/query-plan-scope.tspackages/3-extensions/sql-orm-client/src/query-plan-select.tspackages/3-extensions/sql-orm-client/test/aggregate-pagination.test.tspackages/3-extensions/sql-orm-client/test/aggregate-plan-baseline.test.tspackages/3-extensions/sql-orm-client/test/collection-contract.test.tspackages/3-extensions/sql-orm-client/test/distinct-on-capability.test-d.tspackages/3-extensions/sql-orm-client/test/distinct-on-capability.test.tspackages/3-extensions/sql-orm-client/test/generated-contract-types.test-d.tspackages/3-extensions/sql-orm-client/test/query-plan-aggregate.test.tspackages/3-extensions/sql-orm-client/test/variant-include.query-plan-aggregate.test.tspackages/3-targets/6-adapters/sqlite/src/core/adapter.tspackages/3-targets/6-adapters/sqlite/test/adapter.test.tsscorecard/06-sql-orm-client.mdskills/prisma-8-extension-upgrade/upgrades/8.0.0-rc.4-to-8.0.0-rc.5/instructions.mdtest/integration/test/sql-orm-client/aggregate-sqlite.test.tstest/integration/test/sql-orm-client/aggregate.test.tstest/integration/test/sql-orm-client/self-relations-matrix.test.ts
🚧 Files skipped from review as they are similar to previous changes (19)
- packages/3-targets/6-adapters/sqlite/src/core/adapter.ts
- packages/3-extensions/sql-orm-client/test/generated-contract-types.test-d.ts
- test/integration/test/sql-orm-client/self-relations-matrix.test.ts
- packages/3-extensions/sql-orm-client/test/distinct-on-capability.test-d.ts
- packages/3-targets/6-adapters/sqlite/test/adapter.test.ts
- packages/3-extensions/sql-orm-client/test/aggregate-plan-baseline.test.ts
- packages/3-extensions/sql-orm-client/src/collection-contract.ts
- packages/3-extensions/sql-orm-client/test/collection-contract.test.ts
- docs/architecture docs/subsystems/3. Query Lanes.md
- scorecard/06-sql-orm-client.md
- packages/3-extensions/sql-orm-client/test/query-plan-aggregate.test.ts
- packages/3-extensions/sql-orm-client/src/collection.ts
- packages/3-extensions/sql-orm-client/test/aggregate-pagination.test.ts
- packages/3-extensions/sql-orm-client/test/distinct-on-capability.test.ts
- packages/3-extensions/sql-orm-client/test/variant-include.query-plan-aggregate.test.ts
- packages/3-extensions/sql-orm-client/src/query-plan-select.ts
- packages/3-extensions/sql-orm-client/src/query-plan-aggregate.ts
- test/integration/test/sql-orm-client/aggregate.test.ts
- packages/3-extensions/sql-orm-client/src/query-plan-scope.ts
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…-scoping lands Snapshots the compiled plan AST and params for aggregate chains that name no row scope (bare, where-only, orderBy-only which stays inert, multi-selector including a no-column count(), and the grouped equivalents) against unmodified src/. Later work adds row-scoping to compileAggregate; this baseline is what proves an unpaginated aggregate keeps compiling to the same plan. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…-scope Move createTableRefRemapper, buildStateWhere, its cursor lowering (buildCursorWhere, createBoundaryExpr, buildLexicographicCursorWhere), and wrapWithRowNumberDedup out of query-plan-select.ts into a new sibling module. query-plan-select.ts imports them back; the SQL it compiles is unchanged. This gives compileAggregate a module to import the same row-scoping machinery from, without duplicating it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
compileAggregate now takes the collection's CollectionState instead of a
bare filters array. A chain carrying limit and/or offset wraps its source
in a `${tableName}__scoped` derived table: the inner select carries the
WHERE (filters plus the cursor boundary), ORDER BY, and LIMIT/OFFSET; the
outer select reduces over the derived alias. A chain naming neither
compiles through the unchanged code path. cursor folds into the WHERE via
buildStateWhere regardless of pagination, mirroring the nested scalar-refine
path; a bare orderBy stays inert. compileGroupedAggregate keeps its filters
parameter — grouped row-scoping is the next slice.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…column-and-__row scopedInnerProjection added a constant __row column whenever any selector in the spec lacked a column, even when other selectors already projected real columns. That collides with a model column actually named __row and diverges from the nested prior art it was ported from, which is exclusive: one selector is either a column or __row, never both. Gate the constant on the deduped column set being empty instead. Adds coverage: orderBy() propagating into the wrapped inner select (with the outer select staying unordered), and a wrapped multi-selector spec whose inner projection is exactly the deduped column set. Drops a tautological assertion from the ParamRef-identity test that compared plan.params against its own definition. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
needsRowScope widens to hasPagination || hasDistinct, matching query-plan-select.ts:1237-1241 verbatim. Inside the wrap, distinctOn lowers to native withDistinctOn with orderBy applied when present; distinct dedups via wrapWithRowNumberDedup then reapplies orderBy on the ranked alias so LIMIT/OFFSET slices the ordered, deduped rows instead of an arbitrarily-ordered set — the ROW_NUMBER wrap strips ordering from its own output, so skipping the reapplication silently reduces over the wrong rows. Hidden order columns are carried through the wrap only for the distinct + orderBy combination, mirroring query-plan-select.ts:1284-1355. Also asserts the columns.size === 0 branch of scopedInnerProjection (every selector lacks a column, under the wrap) projects exactly __row. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…epts
The distinctOn() test drove orderBy(views desc).distinctOn(title), which
lowers to `DISTINCT ON ("title") ... ORDER BY "views" DESC` — Postgres
requires DISTINCT ON expressions to match the leading ORDER BY expressions,
so that plan is a 42P10 the renderer never reconciles. Rewritten to lead
the orderBy with the distinctOn column (title asc, views desc as a
tiebreaker), mirroring the valid usage documented at collection.ts:920-924.
No lowering change: the invalid-prefix case is a pre-existing gap on
.distinctOn(...).all() too, out of scope here.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
compileAggregate built its FROM from tableSourceForContract alone, so a .variant(...)-narrowed model whose variant-owned orderBy or where() column resolves to a ColumnRef qualified against the variant table emitted a plan missing that table from its own FROM. compileAggregate now takes an optional modelName and, mirroring compileSelect strategy via the newly exported buildMtiJoins, joins the variant table whenever the model is polymorphic and narrowed to an MTI variant — unconditional on which clause references it, since the aggregate selector column and distinct/distinctOn always resolve against the base model and orderBy is the only axis that can carry a variant-qualified column. The join lands on inner before the distinct branch: withProjection carries it through wrapWithRowNumberDedup into the ranked subquery, where a variant-qualified hidden-order expression needs it in scope. STI variants keep their columns on the base table and need no join — confirmed rather than assumed, via the Bug/Feature split in the existing polymorphism fixture. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
buildMtiJoins moves out of query-plan-select.ts, verbatim, into query-plan-scope.ts alongside the other row/join-scope helpers query-plan- select.ts and query-plan-aggregate.ts both already share from there. query-plan-select.ts imports it back; the SQL it compiles is unchanged. Reusing it across two exporting modules is the coupling query-plan-scope exists to remove — the D2 module is not narrowed to row-scope machinery specifically, so it is the shared home rather than a third module. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
.distinctOn() typechecked and ran on every target, including SQLite, whose
renderer silently drops the clause (adapter.ts:236 reads only ast.distinct) —
undeduped rows with no signal. sql-builder already gates the identical
capability at both levels; the ORM lane never consulted it.
Type gate: distinctOn()s rest-param type nests
`TContract["capabilities"] extends { postgres: { distinctOn: true } }`
ahead of the existing hasOrderBy gate, narrowing to never on a contract
that does not declare the capability — mirrors the ORM lanes own idiom
for this kind of gate (the sibling hasOrderBy check) rather than
importing sql-builders GatedMethod, which would add a cross-lane package
dependency neither lane currently has. The two mechanisms resolve
identically on wide/empty capability shapes.
Runtime gate: assertDistinctOnCapability mirrors assertReturningCapability
(reuses hasContractCapability unmodified, reuses the existing
ORM.CAPABILITY_MISSING subcode — no new subcode) but matches
sql-builders exact message text, `distinctOn() requires capability
postgres.distinctOn`, so both lanes throw an identical, greppable string.
Corrects the Query Lanes subsystem doc, which named a projection.distinctOn
key that is never emitted or checked — the ORM and sql-builder lanes both
gate on postgres.distinctOn. Also corrects the adjacent .distinct() line,
which claimed a capability requirement that lowering to the portable
ROW_NUMBER dedup never needed.
Splits the sql-orm-client scorecards distinct/distinctOn row: distinctOn
on SQLite moves from untested-but-reachable to not-applicable, since it is
now a compile error there; distinct(...) is unaffected and keeps its prior
status.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…lities shape GeneratedLikeContractBase narrowed only domain from the base Contract interface, leaving capabilities at the wide Record<string, Record<string, boolean>> default — a shape the new distinctOn() capability gate cannot distinguish from a contract that lacks postgres.distinctOn, since boolean does not extend the literal true the gate checks for. The existing .distinctOn(email) call at line 241 is a positive usage with nothing modelling a capability-less contract deliberately, so completing the override to declare postgres.distinctOn: true (matching what the real emitted fixture at test/fixtures/generated/contract.d.ts carries) makes this stand-in more faithful to what it models, not less. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…umed assertDistinctOnCapability guarded only the distinctOn() builder method, which is one entry point into state.distinctOn — a Collection built directly from a hand-constructed CollectionState (both exported from ./exports) never calls distinctOn(), so neither the type gate nor the runtime assert on the method fired. compileAggregate and compileSelect now assert the capability themselves, right where state.distinctOn is read and lowered to withDistinctOn, closing the gap for every entry point rather than only the one method. The method-level assert stays: it fails fast at authoring time with a better error location, and the two are defence in depth rather than redundant. Adds a type-only regression pin settling whether the distinctOn() parameter gate is defeatable via the house `as never` cast idiom used throughout the aggregate tests: it is not — the rest parameter collects the argument into a [never] tuple, which is never assignable to the bare never the gate narrows to, regardless of the arguments own cast. Rewords the .distinct() doc line to avoid an unqualified "every target" claim, matching the "portable path" phrasing this codebase already uses for the identical property elsewhere. Marks the GeneratedLikeContractBase capabilities override as deliberately minimal so a future reader does not mistake the single key for an oversight. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
F9 guarded compileAggregate and compileSelect, but three more paths lower state.distinctOn without ever consulting the capability: - compileSelectWithIncludes, reached whenever state.includes is non-empty (dispatchCollectionRows routes there instead of compileSelect) — closed by guarding buildSelectAst, the private helper both compileSelect and compileSelectWithIncludes lower distinctOn through, rather than duplicating the check in compileSelectWithIncludes's own body. - buildIncludeChildRowsSelect, reached because include()'s refinement callback result is accepted by isCollectionStateCarrier with no identity check against the collection the callback was handed — a refinement can return an unrelated, hand-built collection whose own state carries distinctOn. - buildIncludeChildScalarSelect, reached because includeRefinementMode is a public constructor option: a hand-built collection constructed with it can call a scalar reducer on itself, and #includeScalarReducer captures that state's distinctOn with no gate in between. No single choke point covers all five now-guarded sites without restructuring the dispatch layer: .aggregate() reaches compileAggregate directly from collection.ts, bypassing dispatchCollectionRows entirely, so a guard placed there could not have covered it regardless. The two include-child builders are independent leaf functions with no shared lowering helper between them, so each needs its own assert. buildSelectAst was the one genuine consolidation available — a private helper already shared by two of the five call sites — so the fix touches it once rather than duplicating a check into compileSelectWithIncludes. Each guard is proven by a test that fails without it (verified by temporarily removing all three and confirming exactly those three tests fail, no others) using the exact constructions this gap allows: a root state carrying both distinctOn and an include, an include() refinement returning an unrelated collection, and a hand-built includeRefinementMode collection calling a scalar reducer on itself. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…QLite
Everything before this proved plan shape. This proves numbers: every case
seeds a row set where the paginated answer and the unpaginated answer
differ, so a wrap that silently stopped applying would flip these back to
the unpaginated numbers.
PGlite (aggregate.test.ts): take() after orderBy() sums only the top n;
skip() without take() sums all-but-the-first-n; where() combined with
pagination; distinct() and distinctOn() each reduce to one row per key;
and a two-distinct-parameter WHERE crossing the derived-table boundary
under pagination, asserting both the returned number and that exactly two
params reached the query.
SQLite (new aggregate-sqlite.test.ts, following count-terminal-
interleaving.test.ts's in-test defineContract pattern — no new fixture
emitted): the same take/where/distinct/parameter-binding cases. distinctOn
is out of scope on this target: it is gated on postgres.distinctOn (D4c),
which this contract does not declare, so the call never reaches the
renderer. Aggregate operations dispatch dynamically (mirroring
sqlite-include-canonical-json.test.ts) since a hand-authored contract's
static aggregate map is unknown to the typed builder surface.
Confirms the predicted skip()-without-take() SQLite failure rather than
working around it: SQLite's grammar has no standalone OFFSET, and the
chain fails with the exact predicted error (`SqlQueryError: near "OFFSET":
syntax error`, verified via a throwaway probe against node:sqlite before
being pinned as the real assertion) rather than a coincidental one. Left
in place as the known gap for a separate authorised dispatch.
Hardens self-relations-matrix.test.ts's two-deep include test by adding
distinct('name') at both nesting levels, routing an already-covered chain
through the ROW_NUMBER dedup ladder at self-relation depth for the first
time — the one place two same-named hidden-order aliases at different
depths actually meet wrapWithRowNumberDedup's forward-every-alias
behaviour. Passes unchanged, confirming by execution what review had only
confirmed by reading.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
… case
F11 (D5 R2): the desync check asserted only params.length, not the
actual bound values, even though the renderer exposes them as
{kind:'literal', value} objects. Assert the two literals directly so
the test proves what its name promises.
Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
SQLite's grammar is `LIMIT expr [OFFSET expr]` — there is no standalone OFFSET clause. The renderer emitted LIMIT and OFFSET as two independent, independently-omittable clauses, so an AST carrying an offset with no limit produced SQL SQLite rejects with "near \"OFFSET\": syntax error". Emit `LIMIT -1 OFFSET n` when an offset is present and a limit is not; -1 is SQLite's documented idiom for an unbounded limit. Both-set, limit-only, and neither-set all render byte-identically to before, verified by a new renderer test covering all four combinations plus a break/restore check confirming the offset-only case discriminates. Un-skips the SQLite `skip()` without `take()` aggregate case D5 left in place as a confirmed known gap; it now asserts a value. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
Before this slice, .take(10).aggregate(...) silently reduced over every matching row; it now reduces over the ten. That is a behaviour change users need to find without reading a changelog, and TSDoc is where they meet it. - aggregate(): states that it reduces over the rows the chain describes, not every matching row, and names take/skip/cursor/ distinct/distinctOn as the state that shapes it. Carries a worked example (top 2 of 5 posts by views) whose scoped answer (90) differs from the unscoped one (150). - take() / skip(): note the window applies to whatever terminal follows, aggregate() included, with a short aggregate example alongside the existing all() one. groupBy() is deliberately untouched — the pre-group/post-group distinction doesn't exist yet, so documenting a rule the code doesn't implement would be worse than documenting nothing. No behaviour change; comment text only. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
F12: two comments in the SQLite aggregate suite cited this slice's own internal dispatch identifiers, which do not survive project close. Rewrite both keeping the durable substance and dropping the IDs: - The distinctOn-out-of-scope comment no longer parenthesizes the capability-gating dispatch that added the check; the check itself (postgres.distinctOn) is the durable fact. - The skip()-without-take() comment states what changed and why (SQLite has no standalone OFFSET; the renderer now emits LIMIT -1 OFFSET n) without naming which dispatches confirmed or fixed it. Re-scanned every file this slice touched (git diff origin/main...HEAD, three-dot to stay merge-base-relative) for the same class of ID; these were the only two hits. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
F13: the worked example computed the scoped sum but only asserted the unscoped one in a comment, so a reader saw one computed result and one claim rather than the comparison the example exists to demonstrate. Show both chains — same model, same aggregate, with and without the take(2) window — so the two different numbers (150 vs 90) are both produced by code in the snippet, not half-stated in prose. Checked take()'s and skip()'s examples for the same shape; neither states a numeric comparison it doesn't demonstrate, so left unchanged. Comment-only diff; baseline snapshot unaffected. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…cord Project spec and plan, the aggregate-row-scope slice spec, dispatch plan, per-dispatch briefs, review log, manual-QA script and run report, and the slice-close walk. These are transient project artifacts that ride slice 1 per the operator decision recorded in the review log; they are deleted at project close. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
Several comments this branch introduced restated what the code beneath them already says. Trim to the ones that carry information a reader cannot get from the code: - take()/skip() TSDoc: drop the "applies to whatever terminal follows" paragraph and its aggregate example — that a limit/offset applies to the terminal that follows it is not news, and the example was padding around a non-fact. Both docblocks are back to their pre-branch text. - compileAggregate's clause-order comment: was narrating each branch in sequence, which the code beneath already shows. Keep only the non-obvious part — getting the order wrong yields a plausible plan with a wrong answer — plus the prior-art pointer. - The MTI-join comment: drop the "MTI variant join, mirroring compileSelect's strategy" announcement of the line below it. Keep the two non-obvious facts — why the join is unconditional on polymorphism rather than on which clause references the variant table, and that STI needs none. Left untouched: every comment this branch moved verbatim out of query-plan-select.ts into query-plan-scope.ts (wrapWithRowNumberDedup's docblock, the SQLite window-spec note, buildMtiJoins, the cursor helpers) — verified by diffing each against its pre-move text in origin/main's query-plan-select.ts; all byte-identical, none touched. Also left untouched: every comment matching a "why, not what" shape — the __row exclusivity rationale, why cursor sits outside the wrap condition, why hidden order columns exist only for distinct+orderBy, why the variant join must precede the distinct branch, every consumption-site duplicate-guard comment, the SQLite LIMIT -1 grammar note, aggregate()'s own row-scope rule statement and its two-chain example, distinctOn()'s capability note, and every test comment explaining what makes its case discriminate — all reviewed against the same noise criteria and kept because none of them restate the code. Comment-only diff; no behaviour change. Baseline snapshot unaffected. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
The first trim pass was too timid. This pass deletes rather than condenses, and restores two blocks in query-plan-aggregate.ts that predate this branch back to their exact origin/main wording (they had drifted while a new paragraph was inserted above them). Branch-authored src comment lines: 100 -> 9, across collection-contract.ts, collection.ts, query-plan-aggregate.ts, query-plan-select.ts, and the SQLite adapter. query-plan-scope.ts is untouched and reconfirmed byte-identical to origin/main's pre-move text (verified per-function via diff against `git show origin/main:query-plan-select.ts`) - all 24 of its comment lines are the move, not this branch's prose. Four near-identical distinctOn-capability guard comments (three in query-plan-select.ts, one in query-plan-aggregate.ts) are now bare if-guards with no comment at all, rather than four repetitions of the same explanation. collection.ts's aggregate() TSDoc lost its two-chain worked example entirely, per instruction; distinctOn()'s capability note is one line with no SQLite mention. No comment in generic/shared code names "aggregate" or "SQLite" outside the code that is actually about them. Comment-only diff; no behaviour change. Baseline snapshot unaffected. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
main cut 8.0.0-rc.4 while this branch was in flight. The rebase onto current origin/main skipped the earlier upgrade-instructions commit (19bbc7b) rather than merge into 8.0.0-rc.3-to-8.0.0-rc.4, which is now a shipped release directory main also modified. check:upgrade-coverage now names the correct in-flight transition directly: 8.0.0-rc.4-to-8.0.0-rc.5, which does not exist yet. Created it, following the structure of the existing sibling directories, and recovered the entry's exact content from 19bbc7b rather than rewriting it - the reasoning (distinctOn's capability gate is a breaking change; the aggregate() row-scope fix is not) is unchanged. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…y-plan-scope compileAggregate mixed two concerns: deciding whether an aggregate needs row scoping, and building the actual scoped select (projection, variant joins, WHERE, distinct lowering, hidden-order columns, reapplied ordering, LIMIT/OFFSET). Only the first is about aggregates. Extract buildScopedSource(contract, namespaceId, tableName, state, modelName, projection) into query-plan-scope.ts, next to the row-scope machinery it already composes (buildStateWhere, buildMtiJoins, wrapWithRowNumberDedup). It takes whatever projection the caller wants on the scoped inner select and owns everything else, including the hidden-order columns the caller never needs to know about. It carries no aggregate vocabulary - scopedInnerProjection (which columns an aggregate spec needs, and the __row fallback) stays in query-plan-aggregate.ts, aggregate-specific as it always was. compileAggregate now reads as: decide whether the chain names a row scope; if it does, build the scoped source and project the aggregates over it; if not, project them over the table directly. ~136 lines down to ~87, plus the 70-line helper. The duplicated projection block and the two return paths are untouched - not this dispatch's job. While moving the code: the three separate withOrderBy call sites in the distinct/distinctOn/plain-order branches collapse to one, with the ranked-alias remap as the only difference between arms. The repeated `x !== undefined && x.length > 0` checks become a local hasEntries type guard (no existing @internal/utils predicate for this). Zero output change: baseline snapshot untouched, every existing test (unit and integration) passes with no expectation edits, no new comments introduced. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…ow-scope machinery buildSelectAst and buildScopedSource independently implemented the same things: buildStateWhere, the distinct(cols) ROW_NUMBER lowering, orderBy, limit/offset, MTI joins - two implementations of one job, and the aggregate path's diverged into worse: a hidden-order-column / ranked-alias-reapply scheme buildSelectAst never needed, because it aliases its ROW_NUMBER wrap back to the original tableName instead of inventing a new one - every outer reference (projection, joins, orderBy) then resolves through that alias with no rewriting. The aggregate path used a different alias per wrap layer instead (tableName__scoped, tableName__scoped_distinct), which is exactly why it needed the hidden columns to carry orderBy through, and threaded a refTableName parameter through toAggregateProjection to paper over the mismatch. Extracted buildDistinctScopedSource (query-plan-scope.ts): the FROM-source-plus-WHERE decision buildTopLevelDistinctRankedInner made, generalized to accept a caller-supplied wrap projection instead of hardcoding "every column of the table". buildSelectAst now calls it in place of its own local copy, with zero change to what it emits - verified against the full sql-orm-client suite and the pinned unscoped-aggregate baseline (byte-identical, confirmed via git diff on the snapshot file). buildScopedSource is rewritten on top of the same helper: one row-scope SELECT aliased to tableName carrying where, MTI joins, distinct/distinctOn, orderBy, and limit/offset - the aggregate has no second, outer level the way a plain select does, so everything that shapes which rows it collapses has to live in this one wrap. wrapWithRowNumberDedup and its hidden-order-column machinery are untouched where they still apply (the three include-level dedup call sites in query-plan-select.ts, a different scoping problem with its own relation-specific aliasing) - only buildScopedSource's own reimplementation of the same idea is gone. refTableName disappears everywhere per the observation that motivated this: toAggregateProjection takes tableName only now, and compileGroupedAggregate's two call sites (which always passed tableName, tableName) simplify mechanically. Fixed a real gap surfaced by running the integration suite, not found by inspection: scopedInnerProjection only projected the aggregate selectors' own columns into the wrap, so an orderBy naming a column no selector aggregated (an id tiebreaker alongside a userId-scoped count, in the failing case) had nothing to resolve against once wrapped - "no such column" on SQLite, "column does not exist" on Postgres. The old hidden-order-projection scheme happened to cover this by construction; the direct-alias scheme needs the wrap's projection to name it explicitly, so scopedInnerProjection now folds orderBy's column-ref columns into the same set its selectors already build. Test churn is the alias rename the emitted SQL now uses (tableName instead of tableName__scoped/__scoped_distinct) plus one test whose premise (reapplying orderBy through a hidden column after the wrap) no longer exists now that no rewriting is needed at all - rewritten to assert the direct column reference instead of deleted, since the property it was proving (take() slices the ordered, deduped rows) is still real and still needs proving. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…ch standard Cut buildDistinctScopedSource's and buildScopedSource's docblocks, the relocated distinct(cols) comment in buildSelectAst, the variantJoins note, the orderBy-visibility comment, and the test comment down to their load-bearing sentence each - the content was defensible, the volume wasn't. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…put naming "Scoped" collides with this package's existing use of "scope" for execution/lifetime (RuntimeScope, ModelAccessorScope, childScope, withMutationScope, acquireRuntimeScope). "Subquery" was considered and rejected too: the SQL packages already use it for a query nested in an expression (SubqueryExpr, EXISTS), and what this builds is a DerivedTableSource in the FROM clause, not that. Renamed to what the thing is to its caller instead: the aggregate's input. buildScopedSource -> buildAggregateInput scopedInnerProjection -> aggregateInputColumns needsRowScope -> needsInputSelect buildDistinctScopedSource -> buildDedupedTableSource (shared with buildSelectAst, so aggregate-named would be wrong for its other caller) Local variables and comments carrying the same word came along: scopedSelect -> aggregateInput in the three test files that used it, plus the "row scope" / "scoped derived table" / "scoped-wrap" phrasing in comments and two test titles in aggregate-pagination.test.ts and aggregate-plan-baseline.test.ts. The baseline snapshot file's export keys are derived from aggregate-plan-baseline.test.ts's renamed describe title, so they moved too - verified via diff that only the seven key strings changed and every pinned AST value underneath them is byte-identical to what it was before this commit. Zero behaviour change: every test passes with the same pass/fail counts as before the rename (753 unit, 326 integration), and every edit outside an identifier/comment/test-name is the mechanical consequence of one (an import re-sorted after its name changed). Every pre-existing "scope" meaning lifetime/execution is untouched. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
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…s, drop default-expectation TSDoc Three items from review on #30067. Operator: drop `aggregate()`'s TSDoc line "Reduces over the rows the chain describes, not every matching row." - the default expectation needs no promise it holds, and the fact that it used to be false is changelog material, not docstring material. Operator: reword the `__row` comment in aggregateInputColumns to name the concrete case that produces it - a bare count() (no argument) with no orderBy naming a column either - instead of just restating the mechanism. CodeRabbit, verified before changing anything: assertDistinctOnCapability called hasContractCapability(contract, 'distinctOn'), which scans every capability group and returns true if any of them has a truthy distinctOn key - confirmed by reading its implementation, not assumed. The type gate narrows specifically on `{ postgres: { distinctOn: true } }` (collection.ts:936), so a contract declaring distinctOn under some other group would pass the runtime check while failing to satisfy what the type gate promises - and could reach it dynamically through a hand-built CollectionState, the same bypass class the existing capability tests in this file already exercise. hasContractCapability itself is correct for its other caller (assertReturningCapability, which is intentionally target-portable); only assertDistinctOnCapability's use of it was wrong, so it now checks contract.capabilities.postgres.distinctOn directly. Added a regression test building a contract with distinctOn under `projection` instead of `postgres`, with a hand-built state carrying distinctOn - proven to catch the bug via break/restore: reverting the fix makes exactly this one test fail (the other six unaffected), and restoring it goes green again. Gates: package typecheck/test/lint, integration-tests test/sql-orm-client, lint:deps - all green. Baseline snapshot unmoved (confirmed via diff against the pinned .snap file, empty). Net change to authored src comment lines across this commit: zero (the two trims offset the new comment on the capability fix). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
…urce.ts The identifier rename landed, but the filename still said "scope" - the last place that word survived in this meaning, and the first thing a reader meets. Everything inside the module is buildAggregateInput, buildDedupedTableSource, buildStateWhere, buildMtiJoins, wrapWithRowNumberDedup, createTableRefRemapper - it owns the FROM/WHERE/JOIN side of a plan (which rows, and where they come from), as opposed to query-plan-select.ts (how a read is shaped) or query-plan-aggregate.ts (how rows are reduced). "Source" matches this codebase's existing vocabulary (AnyFromSource, TableSource, DerivedTableSource - two of the module's six exports return one). query-plan-rows.ts was considered and rejected: already taken by the queryPlanRows execution helper. git mv, so history follows the file. Two import path updates (query-plan-select.ts, query-plan-aggregate.ts) - the only non-transient references repo-wide; everything else naming the old path lives under projects/aggregate-pagination/**, which stays as-is. No module-level doc comment existed to update. Zero behaviour change: every test passes with the same pass/fail counts as before this commit. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
Delivers the project's last un-owned DoD item (docs half only — the TSDoc half was explicitly refused per operator direction in spec.md). Adds docs/reference/ORM Collection Chaining.md — no ORM chaining guide existed, so this is a new one, scoped tightly to the position-semantics rule (pagination before groupBy() scopes rows, after it pages groups) rather than a full API reference, following Mongo Pipeline Builder.md's conventions for tone and shape. Adds docs/releases/v8.0.0-rc.5.md, hand-authored per the process docs/releases/README.md documents for pre-cut entries, covering both halves of the project: root aggregate() honoring pagination (#30067, already merged) and groupBy() position semantics (this slice, PR number pending). Aimed at someone who already wrote the previously silent-no-op form and will see their numbers change on upgrade with no error. Signed-off-by: Steven McClankerton <tatarintsev@prisma.io>
Closes the aggregate-pagination project and removes its working artifacts. Documentation-only — no source, no tests, no behaviour. ##⚠️ Merge order **This must merge after prisma#30098.** That PR lands the project's retro learnings into `drive/calibration/dod.md` and the upgrade-instructions skill. This project produced no long-lived documentation to migrate — the one guide it wrote was deleted on review — so the learnings are its only durable output. Merging this first deletes them. ## What the project delivered `.aggregate()` silently ignored `take` / `skip` / `cursor` / `distinct` / `distinctOn`, reducing over every matching row and returning a confident, wrong number with no signal. `groupBy()` had the same defect for everything chained before it. Both are fixed, with **clause position deciding meaning**: before a terminal, clauses shape the rows it reduces; after `groupBy()`, they page the groups. - prisma#30067 — root `aggregate()` honours the whole chain - prisma#30092 — `groupBy()` carries the chain before it; `GroupedCollection` gained `take` / `skip` / `orderBy` to page groups, with post-group pagination requiring a prior `orderBy` at the type level ## Definition of Done All items met, with one closed as deliberately refused: - Root `aggregate()` honours `take`/`skip`/`cursor` including bare `skip`, and `distinct()`/`distinctOn()` ✅ - Pre-group clauses scope rows, post-group clauses page groups, both verified with `having()` present ✅ - Post-group pagination gated on a prior `orderBy` in the type state ✅ - CI-enforced guard that an unpaginated aggregate's compiled AST is unchanged — the baseline snapshot is byte-identical across every commit of both slices ✅ - Integration tests assert values, not plan shape, on PGlite **and** SQLite for each chain position ✅ - `test/aggregate-pagination.test.ts` free of `it.fails` ✅ - No new ORM error subcode ✅ - Position rule documented where a user meets it — **closed as refused.** Both halves were rejected on operator review: TSDoc as restating the signatures, and a reference guide as unwarranted for what is a bug fix. The changelog entries in `v8.0.0-rc.5.md` carry the user-facing notice. ## Spun out, not dropped prisma#30099 fixes enum `ORDER BY` / `DISTINCT ON` losing declaration order behind any derived table. Manual QA found it through the grouped path, but it is **pre-existing and wider** — `.distinct().orderBy(enumCol)` has had it since `wrapWithRowNumberDedup` first aliased a derived table back to its base name. It ships separately, before rc.5 is cut, so no released version exposes the new route unfixed. ## Notes Two findings were deliberately not ticketed, per standing direction on QA follow-ups: an empty TSDoc hover at the `never`-narrowing error site (`cursor()` behaves identically, so it is a house-level property, not a slice regression), and the demo's namespaced contract requiring `db.orm.<ns>.<Model>` where flat-namespace examples use `db.orm.<Model>`. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Signed-off-by: Steven McClankerton <tatarintsev@prisma.io> Co-authored-by: Steven McClankerton <tatarintsev@prisma.io> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
db.orm.Post.orderBy((p) => p.views.desc()).take(10).aggregate((agg) => ({ total: agg.sum('views') }))used to reduce over every matching row. The window the caller asked for was discarded silently — no error, no warning, just a confident wrong number. This makes the row scope a chain expresses the row scope the aggregate reduces.The rule is positional: clauses before the terminal shape the rows it reduces. That reading is what the builder can express and Prisma's flat options object cannot, and it's now stated in TSDoc on the methods where a user meets it.
Changes
Row-scope machinery, extracted (
src/query-plan-scope.ts):buildStateWhere,wrapWithRowNumberDedup,createTableRefRemapper, the cursor lowering, and laterbuildMtiJoinsmoved verbatim out ofquery-plan-select.tsso the aggregate path can reach them without depending on the select path. Move-only — the nestedinclude(...)path emits exactly what it emitted before.Root
.aggregate()honours the chain's scope (src/query-plan-aggregate.ts):compileAggregatenow takes the collection'sCollectionStateand, when the chain carries a limit, offset, or distinct, wraps its source in a<table>__scopedderived table — inner select carrying the WHERE, ORDER BY and LIMIT/OFFSET, outer carrying the aggregate projection.cursorfolds into the WHERE either way and doesn't itself trigger a wrap; a bareorderBystays inert.distinctreuses the portableROW_NUMBERdedup with the ordering reapplied on the ranked alias beforeLIMITslices it. This mirrors the shapeinclude('posts', (p) => p.skip(5).take(10).count())has always compiled to.compileAggregatejoins MTI variant tables: a variant-owned column referenced byorderBypreviously produced SQL naming a table the query never joined. Fixing it also closes the same missing join forwhere(), which was broken independently of this work.distinctOnis capability-gated in the ORM lane (src/collection.ts,src/collection-contract.ts):postgres.distinctOnis an adapter-reported capability that the sql-builder lane has enforced at both type and runtime level all along; the ORM lane never consulted it, so on SQLite the clause type-checked, ran, and was silently dropped by the renderer. Now gated at compile time and at all four points wherestate.distinctOnis consumed. Reuses the existingORM.CAPABILITY_MISSINGsubcode.SQLite renders
LIMIT -1 OFFSET n(packages/3-targets/6-adapters/sqlite/src/core/adapter.ts): SQLite's grammar has no standaloneOFFSET, but the renderer emittedLIMITandOFFSETas independently-omittable clauses — soskipwithouttakeproduced unparseable SQL. This fixes.skip(n).all()too, which was broken long before this branch.A committed baseline guards the negative requirement:
test/aggregate-plan-baseline.test.tssnapshots the compiled plan AST for seven chains that name no row scope, generated against unmodified source and committed before any behaviour change. It has not moved across any of the 17 commits, including theorigin/mainsync.Why
Why a conditional wrap rather than an unconditional derived table. An aggregate naming no row scope has to compile byte-identically to before, not "close enough that the planner optimises it away." The baseline snapshot is the mechanism, and its ordering is the entire point — a snapshot written after the change would prove only self-consistency.
Why
distinctOngrew a gate here. The slice originally claimed "adapter impact: none — the portableROW_NUMBERlowering." That was true fordistinctand false fordistinctOn, which lowers to Postgres-onlyDISTINCT ON. Rather than close a DoD item saying "root aggregates honourdistinctOn" while it silently mis-answered on SQLite, the gate matches the lane that already had one. The repo's own scorecard had this recorded as reachable-but-untested.Why the SQLite renderer fix is in this branch. The defect is pre-existing, but this work makes
skip-without-takea named done-condition on both targets. Closing that on one target while the other threw a syntax error would be a checked box over a broken behaviour.Why the assert moved to where state is consumed. Guarding
distinctOn()the builder method left the publicCollectionconstructor — which accepts a caller-suppliedCollectionState— as an open path into the same clause.assertReturningCapability, the helper this mirrors, guards terminals for exactly that reason.Verified end to end against a real Postgres and a real SQLite: paginated aggregates return hand-computed values that differ from their unpaginated equivalents, parameters bind correctly across the derived-table boundary, and the capability gate refuses on SQLite while staying invisible on Postgres.
Grouped positions —
.take(10).groupBy('x')and.groupBy('x').orderBy(...).take(10)— are the next slice. The lastit.failsintest/aggregate-pagination.test.tsis the grouped case, deliberately left red.Summary by CodeRabbit
distinct()support is available without a database-specific capability.distinctOn()requires the PostgreSQLpostgres.distinctOncapability.