ktx/examples/postgres-historic/README.md
Andrey Avtomonov 2366b00301
chore(workspace): gate dead-code with knip production mode (#196)
* refactor(workspace): relocate @ktx/llm source into packages/cli/src/llm

* refactor(workspace): rewrite @ktx/llm imports to relative paths

* refactor(workspace): fold internal packages into cli

* chore(workspace): gate dead-code with knip production mode

Turn on production-mode knip plus an autofix run in pre-commit and the
`pnpm dead-code` script, document the `/** @internal */` convention for
test-only exports in AGENTS.md, annotate test-only exports across the
CLI with that JSDoc, and drop dead exports/wrappers the new gate
surfaced (e.g. `cli-project.ts`, `lookerRuntimeSourceToFileAdapterSource`,
`createLocalScanEnrichmentProvidersFromConfig`,
`PGLITE_OWNER_PROCESS_BACKEND_CAPABILITIES`, stale type re-exports).
Replace the loose `ignoreIssues` allowlist in `knip.json` with explicit
production entries so cross-package barrel leaks are caught.

* refactor(cli): delete internal barrel index.ts files

The 34 `index.ts` re-export barrels inside `packages/cli/src/` were
holdovers from the pre-fold multi-workspace structure. Post-fold-in they
served no production purpose: external consumers go through the single
package main entry, and in-repo callers mostly imported through them
only because the path was short. Internally, knip flagged most barrel
re-exports as production-dead (only reached via tests).

This change:
- Deletes every internal barrel except `packages/cli/src/index.ts`
  (the published package entry).
- Rewrites ~270 source/test files to import each name directly from
  the file that defines it.
- Moves `tools/warehouse-verification/index.ts` to
  `create-warehouse-verification-tools.ts` (the function it defined
  locally) and updates its single consumer.
- Renames `search/backend-conformance.ts` → `.test-utils.ts` to match
  the existing test-helper file convention.
- Deletes 13 dead test-only chains (dbt-descriptions/*,
  live-database/extracted-schema, live-database/structural-sync,
  relationship-* feedback/review chain) plus their tests and a
  cascading orphan integration test.
- Updates test mocks that pointed at deleted barrel paths
  (notion-client, connector barrels in scan/local-scan-connectors
  tests) to mock the source files instead.
- Points the maintainer benchmark script
  (`scripts/relationship-benchmark-report.mjs`) at source files
  instead of `dist/context/scan/index.js`.
- Drops the barrel `!` entries from `knip.json`; adds explicit
  production entries only for the benchmark code reached via dist by
  the maintainer script.

Net: 413 files changed, ~1.2k insertions, ~9.4k deletions.

`pnpm run dead-code` (Biome + knip default + knip production) and
`pnpm run type-check` are clean; 2277 tests pass.

* refactor(workspace): rename @ktx/cli to @kaelio/ktx and pack it directly

Promote the CLI workspace package to the public name `@kaelio/ktx` and
drop the separate `scripts/build-public-npm-package.mjs` wrapper. The
CLI package is now publishable in place (`publishConfig.access: public`,
`provenance: true`), so artifact packing uses `pnpm pack` against
`packages/cli/` instead of assembling a parallel package tree.

Updates all workspace filter invocations, docs, tests, and release
readiness checks to reference the new package name, and folds the
tarball-name helper into `scripts/public-npm-release-metadata.mjs`.

* docs: align "agent clients" and "data agents" terminology

Replace "client agents" with "agent clients" and "database agents" with
"data agents" across AGENTS.md, README.md, the docs-site copy, and the
matching setup-agents test description, matching the canonical
vocabulary in docs/terminology.md.

Also moves packages/cli/tsconfig.json's tsBuildInfoFile from
node_modules/.cache/ to dist/.tsbuildinfo so incremental builds survive
node_modules reinstalls.

* refactor(release): single source of truth for package version

Make packages/cli/package.json the single source of truth for the
@kaelio/ktx version. publicNpmPackageVersion() now reads it directly,
so artifact filenames, release-readiness checks, and the Python wheel
version all derive from one field. The duplicate
release-policy.json.publicNpmPackageVersion is removed.

Previously the two fields could drift: tarballs were named
kaelio-ktx-0.4.1.tgz while internally containing
@kaelio/ktx@0.0.0-private.

- update-public-release-version.mjs rewrites both Python pyproject.toml
  files (ktx-daemon, ktx-sl) alongside the npm package.jsons,
  normalizing the version for PEP 440 (e.g. 0.1.0-rc.2 -> 0.1.0rc2).
- semantic-release-config.cjs adds the two pyproject.toml files to
  @semantic-release/git assets so the release commit back to main
  carries every version source in lockstep.
- The six "?? '0.0.0-private'" fallback literals across the CLI are
  replaced with "?? getKtxCliPackageInfo().version", and
  createDefaultKtxMcpServer makes its version arg required.
- docs/release.md describes the actual commit-back model: the dev tree
  always reflects the most recent release; no sentinel pin to
  maintain.

Verified: pnpm run artifacts:build now produces
kaelio-ktx-0.4.1.tgz and kaelio_ktx-0.4.1-py3-none-any.whl with
@kaelio/ktx@0.4.1 inside. Full type-check, dead-code, and
2287 vitests + 173 script tests pass.

* refactor(cli): inject embedding provider resolution and detect sentence-transformers runtime

Make resolveProjectEmbeddingProvider and runtimeIo injectable in ingest and
scan command entrypoints so tests can stub them, and teach
resolvePublicIngestRuntimeRequirements to flag the local-embeddings runtime
feature when ktx.yaml selects sentence-transformers.

* chore(cli): mark buildLocalStatsStatus and LocalStatsStatus as @internal

Both symbols are consumed only by status-project.test.ts. Annotating with
/** @internal */ keeps knip's production-mode check clean without changing
runtime behavior.

* fix(cli): use real package metadata in print-command-tree

The stubbed package name embedded a forbidden product identifier that
tripped the boundary check in CI. Read the metadata from package.json
instead — keeps the rendered tree unchanged and removes a duplicate
source of truth.

* feat(cli): show embedding coverage in `ktx status`, drop duplicate disk counts

Inline `(N embedded)` next to the Wiki scope counts and Semantic-layer
source counts, computed with `SUM(embedding_json IS NOT NULL)` over
`knowledge_pages` and `local_sl_sources`. Rename the "Knowledge" label to
"Wiki" (canonical per `docs/terminology.md`) and rename the matching
`localStats.knowledgePages` field to `localStats.wikiPages`.

Drop `wiki=N md` and `semantic-layer=N yaml` from the Disk row — those
duplicated the per-surface rows above. Disk now reports only actual byte
usage (db, cache, raw-sources). The unused `wikiGlobalMarkdownCount` /
`semanticLayerYamlCount` fields, the `isMarkdownEntry` / `isYamlEntry`
helpers, and the `filter` arg on `summarizeDir` are removed.
2026-05-21 15:28:58 +02:00

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Markdown

# Postgres Query History Example
This example is a manual smoke for Postgres query-history ingest through
`pg_stat_statements`. It starts Postgres 14 with the extension preloaded,
generates query workload under separate users, runs `ktx setup` with
`--enable-query-history`, and verifies the staged query-history artifacts:
- `manifest.json`
- `tables/*.json`
- `patterns-input.json` as the full audit input
- `patterns-input/part-*.json` as bounded pattern WorkUnit shards
The smoke also runs the same workload twice and verifies the second stage-only
run has `workUnitCount: 0`, which proves unchanged bucketed table inputs and
unchanged bounded pattern shards do not schedule LLM work.
## Prerequisites
- Docker with Compose v2
- Node and pnpm matching the KTX workspace
- `uv` on `PATH` so the KTX-managed Python runtime can install the bundled
runtime wheel
## Run
From the KTX repository root:
```bash
examples/postgres-historic/scripts/smoke.sh
```
The smoke creates a temporary KTX project, isolates the managed Python runtime
under the temporary project parent, starts Postgres on `127.0.0.1:55432`, and
uses this connection URL:
```bash
postgresql://ktx_reader:ktx_reader@127.0.0.1:55432/analytics # pragma: allowlist secret
```
Set `KTX_POSTGRES_HISTORIC_KEEP_DOCKER=1` to leave the container running after
the script exits.
The smoke validates the query-history raw snapshot path without requiring LLM
credentials. It uses KTX's local stage-only ingest API after `ktx setup`, so the
deterministic reader, batch SQL parser, stable artifact writer, and diff-based
WorkUnit planning are checked independently from curation.
## Manual Commands
Start Postgres and generate the base workload:
```bash
docker compose -f examples/postgres-historic/docker-compose.yml up -d --wait
examples/postgres-historic/scripts/generate-workload.sh base
```
Create a project and enable query history:
```bash
export WAREHOUSE_DATABASE_URL=postgresql://ktx_reader:ktx_reader@127.0.0.1:55432/analytics # pragma: allowlist secret
pnpm --filter @kaelio/ktx run build
node packages/cli/dist/bin.js --project-dir /tmp/ktx-postgres-historic setup \
--new \
--skip-agents \
--skip-llm \
--skip-embeddings \
--skip-sources \
--database postgres \
--new-database-connection-id warehouse \
--database-url env:WAREHOUSE_DATABASE_URL \
--database-schema public \
--enable-query-history \
--query-history-min-executions 2 \
--yes \
--no-input
```
### Readiness check
```bash
pnpm run ktx -- status --project-dir /tmp/ktx-postgres-historic --no-input
```
The installed CLI form is:
```bash
ktx status --project-dir /tmp/ktx-postgres-historic --no-input
```
Expected output includes `PASS Postgres query history (warehouse)` when
`pg_stat_statements` is installed, `pg_read_all_stats` is granted, and tracking
is enabled. A low `pg_stat_statements.max` value is reported as an informational
note, not a warning.
Run query-history ingest:
```bash
pnpm run ktx -- ingest warehouse --project-dir /tmp/ktx-postgres-historic \
--query-history \
--no-input
```
The public query-history ingest path also runs curation WorkUnits, so it
requires a configured LLM provider.
Inspect the latest manifest:
```bash
find /tmp/ktx-postgres-historic/raw-sources/warehouse/historic-sql -name manifest.json | sort | tail -n 1
```
The manifest should have `source: "historic-sql"`, `dialect: "postgres"`,
positive `snapshotRowCount`, positive `touchedTableCount`, numeric
`parseFailures`, `warnings`, and `probeWarnings`. The same directory should
contain `patterns-input.json`, at least one `patterns-input/part-*.json` pattern
shard for cross-table candidates, and one `tables/*.json` file per touched
table.
## Troubleshooting
- Missing extension: confirm `shared_preload_libraries=pg_stat_statements` and
`CREATE EXTENSION pg_stat_statements;` both happened in the `analytics`
database.
- Missing grants: confirm `GRANT pg_read_all_stats TO ktx_reader;`.
- Empty snapshot: rerun `scripts/generate-workload.sh base` and keep
`--query-history-min-executions 2` for the smoke.
- SQL-analysis failures: run `pnpm run ktx -- dev runtime status` from the KTX
repository root and confirm `uv`, the bundled Python wheel, and the managed
runtime all pass.