GovOPlaN/govoplan-dataflow
2
0
Fork 0
Code Issues 2 Pull Requests Actions Packages Projects Releases Wiki Activity

[Feature] Introduce typed Dataflow IR and an engine-neutral Arrow execution boundary #15

New Issue
Closed
opened 2026-07-29 14:27:58 +02:00 by zemion · 1 comment
zemion commented 2026-07-29 14:27:58 +02:00
Owner
Copy Link
Copy Source

Parent: #1

Outcome

The graph editor, SQL workbench, node library, templates, and execution backends share one typed canonical intermediate representation instead of accumulating backend-specific behavior.

Scope

  • Define typed graph, port, schema, expression, parameter, operator, lineage, diagnostic, and result contracts with explicit versioning.
  • Separate node definitions, expression functions, composite/parameterized templates, planning/validation, and physical execution.
  • Use an Arrow-compatible tabular boundary so operators and backends exchange bounded typed batches rather than Python row dictionaries.
  • Preserve node/edge identity, coordinates, source fingerprints, semantic hashes, and loss diagnostics through supported graph/SQL round trips.
  • Add an execution-backend interface and a constrained isolated DuckDB worker as the first analytical backend.
  • Enforce row/byte/time/memory/concurrency budgets; arbitrary filesystem/network access, extensions, DDL/DML, and unchecked SQL remain disabled.
  • Keep the existing bounded reference executor for small deterministic tests and fallback.
  • Golden tests compare schemas, null/error semantics, ordering, aggregation, join/union behavior, diagnostics, and lineage across backends.

Parameterized template ownership remains in #12; this issue supplies the typed contracts it needs.

Parent: #1 ## Outcome The graph editor, SQL workbench, node library, templates, and execution backends share one typed canonical intermediate representation instead of accumulating backend-specific behavior. ## Scope - Define typed graph, port, schema, expression, parameter, operator, lineage, diagnostic, and result contracts with explicit versioning. - Separate node definitions, expression functions, composite/parameterized templates, planning/validation, and physical execution. - Use an Arrow-compatible tabular boundary so operators and backends exchange bounded typed batches rather than Python row dictionaries. - Preserve node/edge identity, coordinates, source fingerprints, semantic hashes, and loss diagnostics through supported graph/SQL round trips. - Add an execution-backend interface and a constrained isolated DuckDB worker as the first analytical backend. - Enforce row/byte/time/memory/concurrency budgets; arbitrary filesystem/network access, extensions, DDL/DML, and unchecked SQL remain disabled. - Keep the existing bounded reference executor for small deterministic tests and fallback. - Golden tests compare schemas, null/error semantics, ordering, aggregation, join/union behavior, diagnostics, and lineage across backends. Parameterized template ownership remains in #12; this issue supplies the typed contracts it needs.
zemion commented 2026-07-29 16:47:43 +02:00
Author
Owner
Copy Link
Copy Source

Codex State: done

Summary

  • Added versioned typed graph, port, schema, expression, parameter, lineage, diagnostic, physical-plan, and result contracts with stable semantic hashes and loss diagnostics.
  • Added bounded columnar batches with Arrow IPC plus an engine-neutral backend protocol, registry, concurrency slots, and deterministic reference fallback.
  • Added an optional isolated DuckDB analytical backend with generated-SELECT-only execution, disabled external access/extensions/persistent secrets/spill, locked configuration, and row/byte/time/memory/process limits.
  • Exposed reference, duckdb, and auto backend selection on preview requests and retained backend/version evidence on saved previews.
  • Golden tests compare aggregation, join, union, null/order behavior, schemas, diagnostics, and lineage across reference and DuckDB backends.

Changed Files

  • src/govoplan_dataflow/backend/ir.py
  • src/govoplan_dataflow/backend/planner.py
  • src/govoplan_dataflow/backend/batches.py
  • src/govoplan_dataflow/backend/backends
  • src/govoplan_dataflow/backend/service.py
  • src/govoplan_dataflow/backend/schemas.py
  • pyproject.toml
  • tests/test_typed_execution.py
  • tests/test_service.py

Verification

  • python -m unittest discover -s tests: 56 passed with analytics extra
  • ruff check src tests: passed
  • xenon --max-absolute C --max-modules B --max-average A src: passed
  • Core WebUI npm run build: passed
## Codex State: done ### Summary - Added versioned typed graph, port, schema, expression, parameter, lineage, diagnostic, physical-plan, and result contracts with stable semantic hashes and loss diagnostics. - Added bounded columnar batches with Arrow IPC plus an engine-neutral backend protocol, registry, concurrency slots, and deterministic reference fallback. - Added an optional isolated DuckDB analytical backend with generated-SELECT-only execution, disabled external access/extensions/persistent secrets/spill, locked configuration, and row/byte/time/memory/process limits. - Exposed reference, duckdb, and auto backend selection on preview requests and retained backend/version evidence on saved previews. - Golden tests compare aggregation, join, union, null/order behavior, schemas, diagnostics, and lineage across reference and DuckDB backends. ### Changed Files - `src/govoplan_dataflow/backend/ir.py` - `src/govoplan_dataflow/backend/planner.py` - `src/govoplan_dataflow/backend/batches.py` - `src/govoplan_dataflow/backend/backends` - `src/govoplan_dataflow/backend/service.py` - `src/govoplan_dataflow/backend/schemas.py` - `pyproject.toml` - `tests/test_typed_execution.py` - `tests/test_service.py` ### Verification - `python -m unittest discover -s tests: 56 passed with analytics extra` - `ruff check src tests: passed` - `xenon --max-absolute C --max-modules B --max-average A src: passed` - `Core WebUI npm run build: passed`
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
area/api
HTTP API contracts, routers, schemas, or API smoke behavior.
 area/auth
Authentication, sessions, access bootstrap, or login behavior.
 area/db
Database sessions, models, transactions, or persistence primitives.
 area/devex
Local developer workflow, scripts, tests, tooling, or release helpers.
 area/docs
Durable documentation and project guidance.
 area/governance
Governance policy, audit, privacy, retention, or compliance behavior.
 area/marketing
Public website, product messaging, publication copy, or legal page content.
 area/migrations
Alembic migrations, schema bootstrap, or persistence evolution.
 area/module-system
Module discovery, manifests, capabilities, routing, or optional integrations.
 area/rbac
Permissions, roles, delegation, or authorization policy.
 area/release
Versioning, release locks, tags, packaging, or dependency pins.
 area/security
Security posture, static analysis, supply-chain hardening, or vulnerability remediation.
 area/tenancy
Tenant boundaries, provisioning, or tenant-scoped data behavior.
 area/webui
Shared WebUI shell, frontend components, routing, or frontend tests.
 audit/complexity
Complexity finding from Radon, Xenon, or equivalent maintainability scans.
 audit/duplication
Duplicated-code finding from jscpd or equivalent similarity scans.
 audit/false-positive
Audit finding reviewed as a narrow false positive or acceptable risk.
 audit/needs-design
Audit finding that needs an architectural or product decision before implementation.
 audit/quick-fix
Audit finding that appears narrow and directly fixable.
 audit/structural
Audit finding that needs design, refactoring, or behavior review.
 codex/needs-human
Needs an explicit human decision before Codex should implement.
 codex/ready
Suitable for Codex to pick up with the existing issue context.
 module/access
GovOPlaN access, identity, authentication, RBAC, and administration behavior.
 module/addresses
GovOPlaN Addresses module behavior or integration.
 module/admin
GovOPlaN Admin module behavior or integration.
 module/appointments
GovOPlaN Appointments module behavior or integration.
 module/approvals
GovOPlaN Approvals module behavior or integration.
 module/audit
GovOPlaN Audit module behavior or integration.
 module/calendar
GovOPlaN Calendar module behavior or integration.
 module/campaign
GovOPlaN campaign module behavior or integration.
 module/cases
GovOPlaN Cases module behavior or integration.
 module/committee
GovOPlaN Committee module behavior or integration.
 module/connectors
GovOPlaN Connectors module behavior or integration.
 module/core
GovOPlaN core runner, shared primitives, shell, or extension points.
 module/dashboard
GovOPlaN Dashboard module behavior or integration.
 module/dataflow
GovOPlaN Dataflow module behavior or integration.
 module/datasources
GovOPlaN governed datasource contracts, catalogs, and integrations.
 module/decisions
GovOPlaN formal Decisions module behavior or integration.
 module/dist-lists
GovOPlaN Distribution Lists module behavior or integration.
 module/dms
GovOPlaN Dms module behavior or integration.
 module/docs
GovOPlaN Docs module behavior or integration.
 module/encryption
GovOPlaN Encryption key custody, cryptographic policy, and E2EE integration.
 module/erp
GovOPlaN Erp module behavior or integration.
 module/evaluation
GovOPlaN Evaluation module behavior or integration.
 module/files
GovOPlaN files module behavior or integration.
 module/fit-connect
GovOPlaN Fit Connect module behavior or integration.
 module/forms
GovOPlaN Forms module behavior or integration.
 module/forms-runtime
GovOPlaN Forms Runtime module behavior or integration.
 module/helpdesk
GovOPlaN Helpdesk module behavior or integration.
 module/identity
GovOPlaN Identity module behavior or integration.
 module/identity-trust
GovOPlaN Identity Trust module behavior or integration.
 module/idm
GovOPlaN Idm module behavior or integration.
 module/ledger
GovOPlaN Ledger module behavior or integration.
 module/mail
GovOPlaN mail module behavior or integration.
 module/mandates
GovOPlaN Mandates, jurisdiction, responsibility, and authority behavior or integration.
 module/notifications
GovOPlaN Notifications module behavior or integration.
 module/ops
GovOPlaN Ops module behavior or integration.
 module/organizations
GovOPlaN Organizations module behavior or integration.
 module/parties
GovOPlaN procedure Parties, representation, and delivery-authority behavior or integration.
 module/payments
GovOPlaN Payments module behavior or integration.
 module/permits
GovOPlaN Permits module behavior or integration.
 module/policy
GovOPlaN Policy module behavior or integration.
 module/poll
GovOPlaN Poll module behavior or integration.
 module/portal
GovOPlaN Portal module behavior or integration.
 module/postbox
GovOPlaN Postbox module behavior or integration.
 module/projects
GovOPlaN Projects module behavior or integration.
 module/quick-access
GovOPlaN configurable task-local Quick Access behavior and integrations.
 module/records
GovOPlaN Records and eAkte lifecycle behavior or integration.
 module/reporting
GovOPlaN Reporting module behavior or integration.
 module/risk-compliance
GovOPlaN Risk Compliance module behavior or integration.
 module/scheduling
GovOPlaN Scheduling module behavior or integration.
 module/search
GovOPlaN Search module behavior or integration.
 module/services
GovOPlaN versioned institutional Services behavior or integration.
 module/tasks
GovOPlaN Tasks module behavior or integration.
 module/templates
GovOPlaN Templates module behavior or integration.
 module/tenancy
GovOPlaN Tenancy module behavior or integration.
 module/tickets
GovOPlaN Tickets module behavior or integration.
 module/views
GovOPlaN governed task views, interface projections, and workflow view integration.
 module/voting
GovOPlaN Voting module behavior or integration.
 module/wiki
GovOPlaN Wiki module behavior or integration.
 module/workflow
GovOPlaN Workflow module behavior or integration.
 module/workflow-engine
GovOPlaN Workflow Engine runtime, persistence, or integration.
 module/xoev
GovOPlaN Xoev module behavior or integration.
 module/xrechnung
GovOPlaN Xrechnung module behavior or integration.
 module/xta-osci
GovOPlaN Xta Osci module behavior or integration.
priority
p0
Immediate stop-the-line priority.
priority
p1
High priority for the next focused work window.
priority
p2
Normal planned priority.
priority
p3
Low priority or opportunistic cleanup.
source/backlog-import
Imported from markdown backlog, roadmap, plan, or TODO files.
 source/security-audit
Created from a structured security or code-quality audit report.
 source/todo-scan
Imported from inline TODO/FIXME/HACK markers by the Gitea TODO importer.
status
blocked
Cannot progress without a decision, dependency, credential, or external change.
status
in-progress
Currently being worked.
status
needs-info
Needs clarifying input before implementation can proceed safely.
status
ready
Ready for implementation.
status
triage
Needs review, ownership, priority, or acceptance criteria.
type
bug
A reproducible defect, regression, or incorrect behavior.
type
debt
Cleanup, refactoring, risk reduction, or deferred engineering work.
type
docs
Documentation, process, or developer workflow work.
type
feature
New user-visible behavior or platform capability.
type
task
Implementation, maintenance, migration, or operational work.
type
user-story
End-to-end user journey or real-world process story used to steer product slices.
No labels area/api area/db area/security codex/ready module/dataflow module/datasources
priority
p1
status
ready
type
feature
Milestone
No items
No Milestone
Projects
Clear projects
No projects
Assignees
Clear assignees
govoplan-package-publisher zemion (Albrecht Degering)
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: GovOPlaN/govoplan-dataflow#15