6d03fac017
sql/135: IMMUTABLE derivation helpers (modulation NRZ/PAM4/DP-16QAM/DP-QPSK/ Coherent, fec_type, inbuilt_fec, coherent) keyed off speed_gbps + form_factor + part_number/standard_name regex. Fill-only, idempotent via fn_tip_enrich_modulation_fec() + daily self-healing cron. Coverage >=100G 3-8% -> 46%. Rules built by a 4-lens optical-standards workflow, adversarially verified (10G-ZR, CFP2-DCO, AOC/DAC scope, bare-QSFP28 fixes folded in before apply). sql/136: speed_gbps made nullable + tip_speed_is_implausible() + BEFORE trigger trg_speed_plausibility (sanitize junk to NULL on write, never abort). One-time cleanup nulled 4708 junk rows (reversible via tip_speed_gbps_rollback); legit FC/SDI/CPRI/OTN gray band preserved. sql/137: v_transceiver_speed_errors flags only real optics -> 596 (was 2134).
49 lines
2.0 KiB
PL/PgSQL
49 lines
2.0 KiB
PL/PgSQL
-- 136 Make speed_gbps nullable + one-time reversible cleanup of junk speed.
|
|
-- Requires 135 (tip_speed_is_implausible, trg_speed_plausibility) applied first.
|
|
--
|
|
-- speed_gbps was NOT NULL, which (a) forced meaningless values onto cables/accessories
|
|
-- and (b) made the guard trigger unusable: NULLing junk on write would abort the insert.
|
|
-- "Unknown speed" is honestly NULL, so we drop the constraint, then NULL the ~4708
|
|
-- unambiguous-junk rows (sub-0.09 fragments incl. <=0, and >1600 cable-part-number
|
|
-- integers). 87% are dac/aoc/accessory where speed is meaningless anyway. The old value
|
|
-- is snapshotted by primary key so the change is fully reversible. The 0.09..1600 gray
|
|
-- band (~355 legit FC/SDI/CPRI/OTN line rates) is intentionally left untouched.
|
|
--
|
|
-- PREVIEW before running (nothing legit should appear):
|
|
-- SELECT speed_gbps, count(*) FROM transceivers
|
|
-- WHERE tip_speed_is_implausible(speed_gbps) GROUP BY 1 ORDER BY 1;
|
|
|
|
BEGIN;
|
|
|
|
ALTER TABLE transceivers ALTER COLUMN speed_gbps DROP NOT NULL;
|
|
|
|
CREATE TABLE IF NOT EXISTS tip_speed_gbps_rollback (
|
|
id uuid PRIMARY KEY,
|
|
old_speed_gbps numeric,
|
|
backed_up_at timestamptz DEFAULT now()
|
|
);
|
|
|
|
INSERT INTO tip_speed_gbps_rollback (id, old_speed_gbps)
|
|
SELECT id, speed_gbps
|
|
FROM transceivers
|
|
WHERE tip_speed_is_implausible(speed_gbps)
|
|
ON CONFLICT (id) DO NOTHING;
|
|
|
|
UPDATE transceivers
|
|
SET speed_gbps = NULL
|
|
WHERE tip_speed_is_implausible(speed_gbps);
|
|
|
|
COMMIT;
|
|
|
|
-- REVERSE (maintenance window, no concurrent writers). Disable the guard so it does
|
|
-- not re-NULL the junk being restored:
|
|
-- BEGIN;
|
|
-- ALTER TABLE transceivers DISABLE TRIGGER trg_speed_plausibility;
|
|
-- UPDATE transceivers t SET speed_gbps = r.old_speed_gbps
|
|
-- FROM tip_speed_gbps_rollback r
|
|
-- WHERE t.id = r.id AND t.speed_gbps IS NULL;
|
|
-- ALTER TABLE transceivers ENABLE TRIGGER trg_speed_plausibility;
|
|
-- -- optional, only if every row is non-null again:
|
|
-- -- ALTER TABLE transceivers ALTER COLUMN speed_gbps SET NOT NULL;
|
|
-- COMMIT;
|