Joseph Doherty
102 lines
5.8 KiB
SQL
102 lines
5.8 KiB
SQL
-- Seed for the Sql driver's PostgreSQL live gate (PostgresReadTests), applied once by the
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-- compose `postgres-seed` one-shot as the superuser against the OWNED `otopcua-sql-pg` container.
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--
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-- The table shapes mirror the SQL Server fixture (SqlPollServerFixture) row for row — a present
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-- value, a present row with a NULL cell, and a wide-row table whose NEWEST row is deliberately not
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-- its first — so the same assertions can be made against both backends and a divergence between
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-- the two provider paths shows up as a failing assertion rather than as two suites that quietly
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-- test different things.
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--
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-- ── TWO THINGS HERE ARE LOAD-BEARING, NOT SCAFFOLDING ─────────────────────────────────────────
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--
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-- 1. The schema is owned by `sqlpoll_owner` and the suite connects as `otopcua`, which holds
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-- USAGE + SELECT and nothing else. That is the exact provisioning `PostgresDialect.ListSchemasSql`
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-- was written for: `information_schema.schemata` lists only schemas the current role OWNS, so a
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-- granted-not-owning read-only poller would see an empty schema list, `SqlCatalogLoader` would
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-- throw its "the catalog returned no schemas at all" grant diagnosis, and every tag would be
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-- rejected. Sourcing the schema list from `information_schema.tables` instead is what makes this
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-- work — and a fixture where the poller owned its own schema would pass either way, proving
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-- nothing. Do not "simplify" this by creating the tables as `otopcua`.
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--
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-- 2. Every identifier is created UNQUOTED, so Postgres folds it to lower case in the catalog. The
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-- suite's case-folding leg authors the same names in UPPER case and expects them to resolve
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-- through `SqlCatalog.TryMatch` (exact-ordinal first, then a UNIQUE case-insensitive match, which
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-- substitutes the catalog's own spelling). Quoting a name here would make the catalog spelling
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-- mixed case and that leg would stop meaning anything.
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\set ON_ERROR_STOP on
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-- ── roles ─────────────────────────────────────────────────────────────────────────────────────
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-- \gexec runs the row the SELECT produced, and produces no row when the role already exists —
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-- the idempotent CREATE ROLE idiom. A DO block cannot be used for the login role: psql does not
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-- interpolate :'app_password' inside a dollar-quoted body.
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SELECT 'CREATE ROLE sqlpoll_owner NOLOGIN'
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WHERE NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'sqlpoll_owner')
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\gexec
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SELECT 'CREATE ROLE otopcua LOGIN'
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WHERE NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'otopcua')
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\gexec
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-- Set (or re-set) the password every run, so re-seeding with a different SQL_PG_PASSWORD converges
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-- rather than leaving the suite unable to log in.
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ALTER ROLE otopcua LOGIN PASSWORD :'app_password';
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-- ── schema ────────────────────────────────────────────────────────────────────────────────────
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-- Drop-and-recreate rather than merge-or-insert: the seed is an assertion contract, and a leftover
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-- row from an older revision of this file would make a passing test meaningless. The blast radius
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-- is bounded to this fixture-owned schema.
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DROP SCHEMA IF EXISTS sqlpoll CASCADE;
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CREATE SCHEMA sqlpoll AUTHORIZATION sqlpoll_owner;
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-- Everything below is created AS THE OWNER, not as the superuser — see note 1 above.
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SET ROLE sqlpoll_owner;
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-- Key-value (EAV) source: tag_name → num_value, with a source timestamp.
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CREATE TABLE sqlpoll.tag_values (
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tag_name varchar(128) NOT NULL,
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num_value double precision NULL,
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sample_ts timestamp(3) NOT NULL
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);
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INSERT INTO sqlpoll.tag_values (tag_name, num_value, sample_ts)
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VALUES ('Line1.Speed', 42.0, TIMESTAMP '2026-07-24 10:00:00'),
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('Line1.Temp', NULL, TIMESTAMP '2026-07-24 10:00:01'),
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('Line1.Pressure', 3.5, TIMESTAMP '2026-07-24 10:00:02');
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-- Wide-row source: one row per station, several value columns. Station 8 is inserted LAST and is
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-- also the newest sample, while station 7 is first — so a topByTimestamp plan that lost its
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-- ORDER BY … DESC (or its LIMIT 1) returns a different, wrong value rather than a coincidentally
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-- right one.
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CREATE TABLE sqlpoll.latest_status (
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station_id integer NOT NULL,
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oven_temp double precision NULL,
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pressure double precision NULL,
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sample_ts timestamp(3) NOT NULL
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);
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INSERT INTO sqlpoll.latest_status (station_id, oven_temp, pressure, sample_ts)
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VALUES (7, 180.5, 1.2, TIMESTAMP '2026-07-24 10:00:00'),
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(9, NULL, 1.6, TIMESTAMP '2026-07-24 10:00:01'),
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(8, 210.25, 1.4, TIMESTAMP '2026-07-24 10:00:02');
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-- Integer-keyed EAV source (STAB-24): the key column is `integer`, so a key bound as the default
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-- `text` fails with "operator does not exist: integer = text". Pins the untyped-bind fix in
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-- PostgresDialect.ConfigureParameter for the key-value IN-list path (the wide-row `whereColumn`
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-- path is covered by latest_status.station_id above).
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CREATE TABLE sqlpoll.int_tag_values (
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tag_id integer NOT NULL,
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num_value double precision NULL,
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sample_ts timestamp(3) NOT NULL
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);
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INSERT INTO sqlpoll.int_tag_values (tag_id, num_value, sample_ts)
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VALUES (101, 77.5, TIMESTAMP '2026-07-24 10:00:00'),
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(102, 12.0, TIMESTAMP '2026-07-24 10:00:01');
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RESET ROLE;
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-- ── grants: USAGE + SELECT and nothing else ───────────────────────────────────────────────────
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GRANT USAGE ON SCHEMA sqlpoll TO otopcua;
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GRANT SELECT ON ALL TABLES IN SCHEMA sqlpoll TO otopcua;
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