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fix(schema): batch DuckDB introspection and bound indexing - #1514
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- `duckdb`: restrict schema/table/column introspection to the current catalog and de-duplicate schemas, so attached catalogs no longer produce repeated schemas, duplicate tables or merged columns - `duckdb`: add optional `introspectSchema(signal)` connector capability returning schemas, tables and columns in two queries independent of table count - `schema cache`: prefer bulk metadata when available, dedupe schema/table names for other connectors, and replace cache rows plus the warehouse summary in a single transaction - `schema_index`: forward session cancellation, apply a 30s default deadline (including connection acquisition), report partial results and stopping reason, and prevent late cache writes after cancellation - tests: driver, cache, tool and real-DuckDB integration regressions (native tests gated on `ALTIMATE_DUCKDB_E2E=1`) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Check name Status Explanation Title check The title clearly and concisely describes the main changes: batched DuckDB introspection and bounded schema indexing. Description check The description completes all required template sections, identifies the issue and root cause, explains the implementation, documents deferred items, and provides detailed verification results. It inc… Linked Issues check For [ #1482], the PR implements bulk DuckDB introspection with current-catalog filtering and de-duplication. The reported DuckDB test covers 3,000 tables, completes within 20 seconds, and uses at most …Out of Scope Changes check The reviewed changes stay within [ #1482]. Driver changes implement catalog-scoped, bulk, abort-aware introspection. Cache and indexing changes implement de-duplication, transactional replacement, dead…
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A rabbit gathers schemas in the moonlit night
DuckDB’s tables line up just right
A signal calls; the crawl can pause
The cache keeps snapshots without a flaw
Partial notes mark where it stopped
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Code Review SummaryStatus: 4 Issues Found | Recommendation: Address before merge Overview
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Fix these issues in Kilo Cloud Previous Review Summary (commit 8663a84)Current summary above is authoritative. Previous snapshots are kept for context only. Previous review (commit 8663a84)Status: 3 Issues Found | Recommendation: Address before merge Overview
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… stale - a partial (timed-out, cancelled or soft-failed) run no longer replaces an existing snapshot - with no prior snapshot, the partial result is saved with an epoch `last_indexed` so freshness checks treat it as stale and re-index - tests cover both cases Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Pushed a fix for the review finding that a partial index could replace a complete cache and look fresh.
Still open as a follow-up: the new DuckDB suites need |
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Inline comments:
Review comments at @packages/opencode/src/altimate/native/schema/cache.ts:
- Around line 208-211: Compute totalColumns from the gathered tables before the
snapshot-write branch so partial runs that retain an existing snapshot report
columns_indexed consistently with tables_indexed. Update the column-counting
logic in the crawl flow and remove any increment inside the write branch to
avoid counting columns only when a snapshot is written.
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Issue for this PR
Closes #1482
Type of change
What does this PR do?
Why: indexing a large warehouse was slow and could hang a session, and DuckDB introspection returned wrong metadata when other catalogs were attached.
Root cause: the cache crawler issued schema -> table -> per-table column requests with one SQLite transaction per table. DuckDB's schema/table/column queries had no catalog restriction or DISTINCT. The
schema_indextool did not forward cancellation and nothing bounded indexing time.Before -> after:
introspectSchema(signal)connector capability fetches everything in two queries regardless of table count.Deferred:
Database::Interrupt()is a no-op); we stop waiting and block late writes, but the query may finish in the background.Review follow-ups (P2, not fixed here): DuckDB temp tables are excluded by the current-catalog filter;
timeout_msis not exposed on the tool; an interrupted refresh replaces the snapshot with completed tables without persisting a partial flag; a synchronous crawl can starve the deadline timer; the new DuckDB suites need explicit CI invocations (they requireALTIMATE_DUCKDB_E2E=1).How did you verify your code works?
packages/opencode: schema-indexing, schema-index, schema-cache, feature-discovery-e2e: 76 pass, 0 fail;test/altimate/schema*: 140 pass, 1 skip, 0 failALTIMATE_DUCKDB_E2E=1schema-index-duckdb.test.ts(3,000 tables, 6,000 columns, attached-catalog conflicts): 1 passpackages/driversALTIMATE_DUCKDB_E2E=1 duckdb-schema.test.ts: 5 pass, 0 fail (5 fail before the change)bun run typecheck(opencode) andtsgo(drivers): cleangit diff --checkcleanScreenshots / recordings
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Checklist
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Note
Medium Risk
Changes schema cache write semantics and indexing cancellation/timeouts; incorrect partial handling could leave stale or incomplete search metadata, though existing snapshots are preserved on failed refreshes.
Overview
Fixes slow/hanging warehouse schema indexing and incorrect DuckDB metadata when other catalogs are attached.
DuckDB driver scopes
listSchemas/listTables/describeTabletocurrent_database(), deduplicates schema names, and adds optionalintrospectSchema(signal)that loads schemas, tables, and columns in two queries. Internalquery()honorsAbortSignal(stops waiting; native query may still finish).Schema cache indexing prefers bulk
introspectSchemawhen available; otherwise falls back with schema/table de-duplication. Metadata is collected first, then the SQLite snapshot is replaced in one transaction so the prior cache stays readable during refresh. Partial runs reportpartial+note; a failed refresh over an existing complete cache keeps the old snapshot.Indexing bounds: new
index-controlapplies a 30s default deadline and merges sessionAbortSignalthroughschema.index, theschema_indextool (ctx.abort), and connector calls. Telemetry marks introspection unsuccessful when results are partial.Reviewed by Cursor Bugbot for commit adb3450. Bugbot is set up for automated code reviews on this repo. Configure here.
Summary by cubic
Fixes schema indexing so large warehouses no longer hang a session, DuckDB introspection no longer mixes metadata from attached catalogs, and interrupted refreshes keep the last good cache.
introspectSchemapath for DuckDB that fetches schemas, tables, and columns in two queries regardless of table count and scopes results to the current catalog.Written for commit adb3450. Summary will update on new commits.
Summary by CodeRabbit
New Features
Improvements