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feat(db-tool): hectic-inheritance: add hectic.immutable + diff coverage

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Add a hectic.immutable parent table. Tables inheriting it get auto-attached
BEFORE INSERT/UPDATE/DELETE/TRUNCATE row+statement triggers that block DML
unless the session sets hectic.migration_mode='on' (intended use: SET LOCAL
inside a migration transaction). Same exemptions as the rest of the bundle
apply (hectic schema, partitions, temp tables, GUC-excluded schemas).

database diff now appends an --- IMMUTABLE TABLE DATA --- section to its
output, with per-table unified row diffs of every table inheriting
hectic.immutable, surfacing drift in 'frozen' reference data alongside schema
drift. Subcommand exits non-zero when either schema or data differs.

Test postgres-init-hectic-inheritance extended to 10 cases covering
immutable triggers, DML blocked outside migration_mode, SET LOCAL allowing
DML inside a transaction, GUC not leaking past COMMIT, and TRUNCATE under
migration_mode.
This commit is contained in:
yukkop
2026-04-30 16:10:38 +00:00
parent 31d2994997
commit 2eaa568f5b
4 changed files with 266 additions and 5 deletions
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54
test/package/db-tool/test/postgresql/postgres-init-hectic-inheritance/run.sh
View File

@@ -35,8 +35,8 @@ run_sql_expect_fail() {
log notice "case 1: hectic schema and parent tables exist"
got=$(run_sql "SELECT count(*) FROM pg_namespace WHERE nspname='hectic';") || exit 1
[ "$got" = 1 ] || { log error "hectic schema missing"; exit 1; }
got=$(run_sql "SELECT count(*) FROM pg_class c JOIN pg_namespace n ON n.oid=c.relnamespace WHERE n.nspname='hectic' AND c.relname IN ('created_at','updated_at');") || exit 1
[ "$got" = 2 ] || { log error "parent tables missing"; exit 1; }
got=$(run_sql "SELECT count(*) FROM pg_class c JOIN pg_namespace n ON n.oid=c.relnamespace WHERE n.nspname='hectic' AND c.relname IN ('created_at','updated_at','immutable');") || exit 1
[ "$got" = 3 ] || { log error "parent tables missing"; exit 1; }
log notice "case 2: CREATE TABLE without inheritance is rejected"
if ! run_sql_expect_fail 'CREATE TABLE public.bad_table (id int);'; then
@@ -90,4 +90,54 @@ psql "$pgurl" -v ON_ERROR_STOP=1 -c "CREATE TABLE parts.events_us PARTITION OF p
exit 1
}
log notice "case 7: hectic.immutable inheritors are blocked from DML outside migration_mode"
run_sql 'CREATE TABLE public.frozen (id int, label text) INHERITS ("hectic"."created_at", "hectic"."immutable");' || exit 1
got=$(run_sql "SELECT count(*) FROM pg_trigger WHERE tgrelid='public.frozen'::regclass AND tgname IN ('hectic_block_immutable_dml','hectic_block_immutable_truncate') AND NOT tgisinternal;") || exit 1
[ "$got" = 2 ] || { log error "immutable triggers missing on public.frozen (got: $got)"; exit 1; }
if ! run_sql_expect_fail "INSERT INTO public.frozen (id, label) VALUES (1, 'x');"; then
log error "INSERT on immutable table accepted outside migration_mode"
exit 1
fi
if ! run_sql_expect_fail "UPDATE public.frozen SET label='y' WHERE id=1;"; then
log error "UPDATE on immutable table accepted outside migration_mode"
exit 1
fi
if ! run_sql_expect_fail "DELETE FROM public.frozen WHERE id=1;"; then
log error "DELETE on immutable table accepted outside migration_mode"
exit 1
fi
if ! run_sql_expect_fail "TRUNCATE public.frozen;"; then
log error "TRUNCATE on immutable table accepted outside migration_mode"
exit 1
fi
log notice "case 8: SET LOCAL hectic.migration_mode='on' allows DML"
psql "$pgurl" -v ON_ERROR_STOP=1 <<'SQL' || { log error "migration_mode tx failed"; exit 1; }
BEGIN;
SET LOCAL hectic.migration_mode = 'on';
INSERT INTO public.frozen (id, label) VALUES (1, 'x');
UPDATE public.frozen SET label = 'y' WHERE id = 1;
COMMIT;
SQL
got=$(run_sql "SELECT label FROM public.frozen WHERE id=1;") || exit 1
[ "$got" = y ] || { log error "expected label=y after migration tx, got: $got"; exit 1; }
log notice "case 9: GUC does not leak past COMMIT"
if ! run_sql_expect_fail "INSERT INTO public.frozen (id, label) VALUES (2, 'z');"; then
log error "INSERT accepted after migration_mode tx committed (GUC leaked)"
exit 1
fi
log notice "case 10: TRUNCATE allowed under migration_mode"
psql "$pgurl" -v ON_ERROR_STOP=1 <<'SQL' || { log error "truncate under migration_mode failed"; exit 1; }
BEGIN;
SET LOCAL hectic.migration_mode = 'on';
TRUNCATE public.frozen;
COMMIT;
SQL
got=$(run_sql "SELECT count(*) FROM public.frozen;") || exit 1
[ "$got" = 0 ] || { log error "frozen not truncated"; exit 1; }
log notice "test passed"