claude@clouddev1
6b4c4dcea4
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).
rdbms-playground
A cross-platform terminal app for learning relational database concepts — tables, columns, primary and foreign keys, relationships, indexes, queries, and query plans — in a safe sandbox.
It's a teaching tool, not a database administration tool. It meets beginners with guided, keyword-based commands (simple mode) and grows with them to raw SQL (advanced mode), so the same playground works from "what is a primary key?" through to writing real queries and reading their execution plans.
Website & documentation: https://relplay.org
Install
One line (Linux / macOS)
curl -fsSL https://git.lazyeval.net/oli/rdbms-playground/raw/branch/main/scripts/install.sh | sh
Detects your OS and CPU, downloads the matching release binary, verifies
its SHA-256 checksum, and installs it to ~/.local/bin. Set
RDBMS_INSTALL_DIR to install elsewhere, or RDBMS_VERSION=vX.Y.Z to
pin a version. (Prefer to read before you run? The script lives at
scripts/install.sh.)
One line (Windows, PowerShell)
irm https://git.lazyeval.net/oli/rdbms-playground/raw/branch/main/scripts/install.ps1 | iex
Downloads the matching .exe, verifies its checksum, installs to
%LOCALAPPDATA%\Programs\rdbms-playground, and adds it to your user
PATH. Or use a package manager (Scoop / winget) once those land.
With cargo binstall
If you have cargo-binstall
(install it first — it is not part of cargo itself):
cargo binstall rdbms-playground
From source
cargo install rdbms-playground # from crates.io
# or, from a clone:
cargo build --release # binary at target/release/rdbms-playground
Prebuilt binaries
Every release publishes static Linux, standalone Windows, and macOS
binaries (x86_64 and aarch64) with .sha256 checksums on the
releases page.
Windows users can also use the binary directly (package-manager support
is planned).
A quick taste
create table Customers with pk id(serial)
add column Customers: name (text)
add column Customers: email (text)
insert into Customers values ('Ann', 'ann@example.io')
show data Customers
Press F1 while typing for a contextual hint about the command you're
building, or type help for the full command list. Switch to raw SQL
with mode advanced (or prefix a single line with :).
Project status
Approaching its first public release. See the website for current features; installation via package managers (Homebrew, Scoop, winget) is on the roadmap.
License
Dual-licensed under either of
- MIT license (LICENSE-MIT)
- Apache License 2.0 (LICENSE-APACHE)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual-licensed as above, without any additional terms or conditions. See CONTRIBUTING.md.