rdbms-playground

T

claude@clouddev1 7bfd213ab3 docs: ADR-0029 — column constraints (NOT NULL / UNIQUE / CHECK / DEFAULT)

Designs the remaining C3 surface: the four column-level
constraints declared in the column-spec suffix at `create
table` / `add column`, and modified on existing columns via
`add constraint … to` / `drop constraint … from`.

- A pre-flight dry-run (the ADR-0017 ethos) scans a populated
  column before applying NOT NULL / UNIQUE / CHECK and refuses
  with a pretty-table of offending rows; no `--force`.
- CHECK reuses the ADR-0026 expression grammar via Subgrammar.
- `__rdbms_playground_columns` carries a new `check_expr`
  column; the other three are recoverable from SQLite pragmas.
- README index updated.

2026-05-19 13:36:50 +00:00

.codegraph

round-5 follow-up: completion + i18n sweep

2026-05-13 15:58:29 +00:00

docs

docs: ADR-0029 — column constraints (NOT NULL / UNIQUE / CHECK / DEFAULT)

2026-05-19 13:36:50 +00:00

src

explain: typing-surface matrix cells (ADR-0028 step 5)

2026-05-19 12:49:58 +00:00

tests

explain: typing-surface matrix cells (ADR-0028 step 5)