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rdbms-playground/CHANGELOG.md
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feat(types)!: drop the blob column type (ADR-0005 Amendment 2)
blob was a dead-end: declarable but never fillable (no literal in either
mode, seed-unsupported), so a blob column could only ever hold NULL. Remove
Type::Blob + Value/CellValue::Blob + the base64 CSV path + the grammar slot
+ completion/render/type-change/seed handling + the binder refusal (whose
message also carried a user-facing "DSL" copy-rule bug). The vocabulary is
now nine types; base64 stays (clipboard OSC-52).

Backward compat is the ADR-0015 migration framework's first real use: a
v1->v2 format bump (CURRENT_SCHEMA_VERSION across serializer/parser/skeleton)
with a migrator that rewrites `type: blob` -> `type: text`, and a forced .db
rebuild from the migrated text when a blob column was actually converted
(the stale .db keeps a STRICT BLOB engine column). Conversion to text is
non-destructive and CSV-free. Covered by a full-stack integration test and a
Tier-4 PTY test that opens a real legacy v1-blob project.

Also sweeps the nine-type vocabulary through CLAUDE.md, requirements.md, the
website (type reference, seed doc, highlight grammar), and the ADR-0030/0033/
0035 cross-references; CHANGELOG Removed entry; handoff-79.

BREAKING CHANGE: the `blob` column type is removed. Existing projects that
declared a blob column are migrated on first open (the column becomes text;
the original project.yaml is kept as a .v1.bak).
2026-06-22 21:25:38 +00:00

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# Changelog
All notable, user-facing changes to RDBMS Playground are documented here.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0/).
## [Unreleased]
### Added
- `help` now covers the advanced-mode SQL commands: `help select`, `help with`,
and the SQL forms of `insert` / `update` / `delete` / `explain` show their own
syntax, and the full command list is grouped into "Simple-mode commands" and
"Advanced-mode (SQL) commands" sections.
- Install via **Scoop**, **Homebrew**, and **winget** in addition to the
existing channels.
- Tier-4 end-to-end test suite that exercises the real application in a
terminal (cold launch, save/reopen, export/import, undo) — guards against
regressions the unit and render tests can't see.
- Automated colour-accessibility checks: every theme now has its
foreground/background contrast and its syntax-colour distinctness verified
on each build.
### Removed
- The `blob` column type. It could be declared but never given a value
(there was no way to type a binary value in either mode), so it was a
dead end with nothing to teach. The vocabulary is now nine types.
Existing projects that used a `blob` column still open — the column is
converted to `text` on first load (a backup of the original project file
is kept alongside it).
### Fixed
- Pasting or scripting several commands at once no longer occasionally
rejects a valid simple-mode `insert` — submitted right after adding a
column — as though it were advanced-mode SQL.
- **Light theme:** string-literal and flag colours in syntax highlighting
were below the WCAG-AA contrast bar; both are now legible. Two dark-theme
token colours that were hard to tell apart have been separated.
- Windows `install.ps1` now works on the in-box Windows PowerShell 5.1 and
updates `PATH` for the current session.
## [0.2.0] - 2026-06-17
### Added
- **Version surfaces:** a `--version` / `-V` command-line flag and an in-app
`version` command, both reporting the build's exact version.
- **Installation options:** publish to crates.io (`cargo install
rdbms-playground`), `cargo binstall` support, a one-line `curl | sh`
installer, and a Windows `install.ps1` — so you no longer have to hand-pick
a release asset.
- **Documentation & landing site** at <https://relplay.org> — the canonical
user guide plus screencast demos.
- A demonstration-mode key alias (Ctrl-G acting as F1) so screencasts can
show the in-app help/hint key.
### Fixed
- Corrected several errors in the contextual-hint help text.
## [0.1.0] - 2026-06-15
First public release: the cross-platform terminal sandbox for learning
relational-database concepts — tables, keys, relationships, indexes, queries
and query plans — in a guided simple mode or a full advanced (SQL) mode, with
projects, undo, and export/import.
[Unreleased]: https://git.lazyeval.net/oli/rdbms-playground/compare/v0.2.0...HEAD
[0.2.0]: https://git.lazyeval.net/oli/rdbms-playground/compare/v0.1.0...v0.2.0
[0.1.0]: https://git.lazyeval.net/oli/rdbms-playground/releases/tag/v0.1.0