P1.4 — user-visible surface:
- Grammar: `seed <table> [count] [--seed <n>]` (the first DSL flag with a
value); build_seed disambiguates the seed value from the positional count.
- Verified the auto-wired surface: table-name completion, --seed offered as
a candidate, validity consistent with `show data`, an ADR-0042 near-miss
row for bare `seed`, and render tests for the seed outcome.
/runda hardening — eight DA findings, all resolved:
- FK sampling now uses ORDER BY so --seed reproducibility no longer relies
on SQLite's unspecified DISTINCT order (D4).
- shortid columns now generate from seed's seeded RNG (new
shortid::generate_with_rng) — D4 now holds with no exceptions.
- Added the missing coverage the DA flagged: undo-one-step (D15), replay
re-runs a seed line (D16), advanced-mode (D5), atomic rollback on a
constraint failure, seed 0 no-op, complex-CHECK advisory (D17), and
FK + shortid reproducibility.
2358 pass / 0 fail / 0 skip, clippy all-targets clean.
A dedicated SeedResult replaces the borrowed insert outcome (X5):
- CommandOutcome::Seed + DslSeedSucceeded event + handle_dsl_seed_success
render: the echo, "N row(s) seeded into T", a capped preview table
(D18, first 20 rows; full count always reported), and a Hint-styled
advisory naming enum-ish / un-derivable-CHECK columns filled with
generic text (D12/D13, Phase-1 wording).
- SeedResult carries requested vs produced, so a junction cap is now
reported to the user, not only logged.
- Count cap (D6): a seed over 10000 rows is refused with a friendly error.
- Catalog keys ok.rows_seeded / seed.capped / seed.advisory_generic.
4 new tests (advisory flag, IN-check not flagged, preview cap, excess
count). 2346 pass / 0 fail / 0 skip, clippy clean.
do_seed now enforces value uniqueness and derives enum values:
- Uniqueness groups (D10): the user-fillable PK, compound UNIQUE
constraints, and single-column UNIQUE / identifier columns stay
distinct across the batch and against existing rows (retry per row).
Junction distinct-combos fall out of PK-tuple uniqueness and cap at
the available parent combinations (logged when capped; the
user-facing note arrives with the advisory in P1.3c).
- Identifier-int columns get a monotonic sequence past MAX(col) (D10),
so they never collide.
- IN-CHECK derivation (D17): a simple `col IN ('a','b')` CHECK becomes
the value source via the new, unit-tested seed::parse_in_check_values,
so the enum-as-CHECK pattern just works.
8 parser unit tests + 4 integration tests (unique column, identifier
sequencing, junction cap, IN-check enum). 2343 pass / 0 fail / 0 skip,
clippy all-targets clean.
Deferred to P1.3c: dedicated SeedResult + capped preview (D18) + the
enum/CHECK advisory incl. the cap note (D12/D13); P1.3d: multi-row path.
do_seed fills foreign-key columns by sampling existing parent rows
(D14): sample_parent_key_tuples reads distinct parent keys, and a
compound FK reads all its child columns from one sampled parent row per
child row. An empty parent is refused with a friendly "seed the parent
first" error. The block guard (D1) refuses a NOT NULL blob column (seed
can't generate one); a nullable blob is omitted (-> NULL).
4 integration tests (valid FK references, empty-parent refusal, NOT NULL
blob refusal, nullable-blob omission). 2331 pass / 0 fail / 0 skip,
clippy all-targets clean.
Deferred to P1.3b: identifier/constraint uniqueness incl. junction
distinct-combos (D10), IN-CHECK derivation (D17), dedicated SeedResult +
capped preview (D18) + advisory (D12/D13), and the multi-row path.