Joseph Doherty
63372e757a
SqlProvider.MySql is now a constructed backend instead of a reserved name. - MySqlDialect (Driver.Sql.Dialect): MySqlConnector 2.6.2 (MIT, fully managed, no vulnerable packages), backtick quoting with MySQL's 64-char / no-trailing- space rules, information_schema catalog SQL with the database as the schema (system databases excluded, aliases pinned), trailing LIMIT, a type map that also reads the reader-side spellings (INT UNSIGNED -> UInt32, BOOL -> Boolean). - SqlDialects: the one provider -> dialect map. The factory, the Test Connect probe and the browse picker each carried their own switch (and drifted once); they now all read this, and their refusals list the supported/reserved sets from it. - AdminUI driver form offers MySql. - Tests: MySqlDialectTests (golden quoting/catalog/type map/planner SQL); the provider-gate tests in factory, probe, browser and form now treat MySql as supported and Odbc as the reserved control. MySqlReadTests + Docker/mysql (throwaway mysql:8.4, SELECT-only login): liveness, KV/wide-row/topByTimestamp, INT keys vs authored text, case folding against case-sensitive table names, catalog rejection, browse walk, factory+probe, named query with a bound parameter, and a writing stored function whose effect the rolled-back transaction discards. (lmxopcua#753) Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
74 lines
3.6 KiB
SQL
74 lines
3.6 KiB
SQL
-- Seed for the Sql driver's MySQL live gate (MySqlReadTests, lmxopcua#753), applied once by the compose
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-- `mysql-seed` one-shot as root against the OWNED `otopcua-sql-mysql` container. `__APP_PASSWORD__` is
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-- substituted by the one-shot before this reaches the server.
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--
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-- Table shapes mirror the SQL Server and PostgreSQL fixtures row for row, so the same assertions hold on all
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-- backends. Two things are load-bearing:
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--
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-- 1. The suite connects as `otopcua`, which holds SELECT on `sqlpoll` and nothing else (plus EXECUTE on the
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-- side-effect function, below). A MySQL "schema" is a database, and information_schema shows a principal
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-- only the objects it holds a privilege on — so MySqlDialect.ListSchemasSql returning `sqlpoll` for this
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-- login is the real provisioning check, not a superuser's view.
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-- 2. Every identifier is lower case. The suite authors the table name in UPPER case and expects the catalog
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-- gate to resolve it through a unique case-insensitive match: on Linux, MySQL table names are case-
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-- SENSITIVE, so without the gate's substitution the quoted upper-case name would name no table.
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DROP DATABASE IF EXISTS sqlpoll;
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CREATE DATABASE sqlpoll;
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USE sqlpoll;
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-- Key-value (EAV) source.
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CREATE TABLE tag_values (
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tag_name varchar(128) NOT NULL,
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num_value double NULL,
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sample_ts datetime(3) NOT NULL
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);
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INSERT INTO tag_values (tag_name, num_value, sample_ts) VALUES
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('Line1.Speed', 42.0, '2026-07-24 10:00:00'),
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('Line1.Temp', NULL, '2026-07-24 10:00:01'),
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('Line1.Pressure', 3.5, '2026-07-24 10:00:02');
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-- Wide-row source. Station 8 is inserted LAST and is the newest sample; station 7 is first — so a plan that
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-- lost its ORDER BY … DESC or its LIMIT 1 returns a different, wrong value.
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CREATE TABLE latest_status (
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station_id int NOT NULL,
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oven_temp double NULL,
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pressure double NULL,
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sample_ts datetime(3) NOT NULL
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);
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INSERT INTO latest_status (station_id, oven_temp, pressure, sample_ts) VALUES
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(7, 180.5, 1.2, '2026-07-24 10:00:00'),
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(9, NULL, 1.6, '2026-07-24 10:00:01'),
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(8, 210.25, 1.4, '2026-07-24 10:00:02');
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-- Integer-keyed EAV source: an authored text keyValue must compare against an INT key column.
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CREATE TABLE int_tag_values (
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tag_id int NOT NULL,
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num_value double NULL,
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sample_ts datetime(3) NOT NULL
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);
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INSERT INTO int_tag_values (tag_id, num_value, sample_ts) VALUES
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(101, 77.5, '2026-07-24 10:00:00'),
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(102, 12.0, '2026-07-24 10:00:01');
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-- Named-query rollback probe: bump_counter() WRITES a row and returns 1. Called through a SELECT, it passes the
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-- read-only guard (nothing lexical says "write"); the driver's always-rolled-back transaction is what must
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-- discard the row. InnoDB, so the insert is transactional. SQL SECURITY DEFINER (root), so `otopcua` needs only
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-- EXECUTE — it holds no INSERT of its own.
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CREATE TABLE side_effects (n int NOT NULL) ENGINE = InnoDB;
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DELIMITER //
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CREATE FUNCTION bump_counter() RETURNS int
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NOT DETERMINISTIC MODIFIES SQL DATA SQL SECURITY DEFINER
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BEGIN
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INSERT INTO side_effects (n) VALUES (1);
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RETURN 1;
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END//
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DELIMITER ;
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-- ── the read-only login ──────────────────────────────────────────────────────────────────────
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DROP USER IF EXISTS 'otopcua'@'%';
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CREATE USER 'otopcua'@'%' IDENTIFIED BY '__APP_PASSWORD__';
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GRANT SELECT ON sqlpoll.* TO 'otopcua'@'%';
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GRANT EXECUTE ON FUNCTION sqlpoll.bump_counter TO 'otopcua'@'%';
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FLUSH PRIVILEGES;
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