claude@clouddev1
c3e5f9014f
Specifies the curated per-cell classification (clean / lossy / incompatible) for column type changes, the static transformer matrix (numeric chains, text↔structured types, always-clean stringifications), and the PK / shortid / uniqueness-bearing handling. Replaces the B2/C2 placeholder of "rely on engine STRICT and surface its errors" with a learner-friendly model that: * refuses incompatibles up-front, * refuses lossy conversions by default with a re-run-with- --force-conversion hint, * refines the PK refusal: an inbound-FK PK is only refused when the new type would change the FK target type (so `serial → int` and `shortid → text` on FK-referenced PKs are allowed; `int → text` etc. still refuse), * adds a post-transformation uniqueness check for PK and shortid columns, * uses the pretty-table renderer (ADR-0016) for all diagnostic row lists, * emits a `[client-side] …` note in the success summary whenever the transformer rewrote any cell. `--force-conversion` accepts loss; `--dont-convert` skips the client-side layer entirely; mutually exclusive. Forward-look: a future iteration may add resolution flags (`--default 0`, `--on-incompatible '<value>'`). Also amends ADR-0002 with a new "User-facing posture" section cementing that the database engine choice is an implementation detail and is never named in user-visible strings. Adds a corresponding bullet to CLAUDE.md's working-style rules so every session picks it up. Implementation lands as a follow-up.
26 lines
1.7 KiB
Markdown
26 lines
1.7 KiB
Markdown
# Architecture Decision Records
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This directory contains the project's ADRs, recorded per
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[ADR-0000](0000-record-architecture-decisions.md).
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## Index
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- [ADR-0000 — Record architecture decisions](0000-record-architecture-decisions.md)
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- [ADR-0001 — Language and TUI framework](0001-language-and-tui-framework.md)
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- [ADR-0002 — Database engine](0002-database-engine.md)
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- [ADR-0003 — Input modes and command dispatch](0003-input-modes-and-command-dispatch.md)
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- [ADR-0004 — Project file format](0004-project-file-format.md)
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- [ADR-0005 — Column type vocabulary](0005-column-type-vocabulary.md)
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- [ADR-0006 — Undo snapshots and replay log](0006-undo-snapshots-and-replay-log.md)
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- [ADR-0007 — Sharing and export](0007-sharing-and-export.md)
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- [ADR-0008 — Testing approach](0008-testing-approach.md)
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- [ADR-0009 — DSL command syntax conventions](0009-dsl-command-syntax-conventions.md)
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- [ADR-0010 — Database access via a dedicated worker thread](0010-database-access-via-worker-thread.md)
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- [ADR-0011 — Foreign-key column type compatibility](0011-fk-column-type-compatibility.md)
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- [ADR-0012 — Internal metadata for user-facing column types](0012-internal-metadata-for-user-facing-types.md)
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- [ADR-0013 — Relationships, naming, and the rebuild-table strategy](0013-relationships-and-rebuild-table.md)
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- [ADR-0014 — Data operations, value literals, and the auto-show pattern](0014-data-operations-and-value-model.md)
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- [ADR-0015 — Project storage runtime](0015-project-storage-runtime.md)
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- [ADR-0016 — Pretty table rendering for data and structure views](0016-pretty-table-rendering.md)
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- [ADR-0017 — Column type-change compatibility](0017-column-type-change-compatibility.md)
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