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B. Naut
e87573e286
* test(sqlness): cover query options on persistent SQL sessions Signed-off-by: Byte-Naut <Byte-Naut@proton.me> * test(query): cover merge-scan joins with query option controls Signed-off-by: Byte-Naut <Byte-Naut@proton.me> --------- Signed-off-by: Byte-Naut <Byte-Naut@proton.me>
153 lines
4.6 KiB
SQL
153 lines
4.6 KiB
SQL
-- Regression coverage for issues 9456/9492 (PR 9491): preserve IN/semi-join
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-- results when merge-scan inputs are distributed across hash partitions.
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CREATE TABLE merge_semi_data (
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ts TIMESTAMP TIME INDEX,
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key_id INT,
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is_match BOOLEAN,
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PRIMARY KEY (key_id)
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)
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PARTITION ON COLUMNS (key_id) (
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key_id < 10,
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key_id >= 10 AND key_id < 20,
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key_id >= 20 AND key_id < 30,
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key_id >= 30
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)
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ENGINE=mito;
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-- Three keys in each of four ranges; each key has a false row then a true row.
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INSERT INTO merge_semi_data VALUES
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('2026-10-09 00:00:00', 1, false), ('2026-10-09 00:00:01', 1, true),
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('2026-10-09 00:00:00', 2, false), ('2026-10-09 00:00:01', 2, true),
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('2026-10-09 00:00:00', 3, false), ('2026-10-09 00:00:01', 3, true),
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('2026-10-09 00:00:00', 11, false), ('2026-10-09 00:00:01', 11, true),
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('2026-10-09 00:00:00', 12, false), ('2026-10-09 00:00:01', 12, true),
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('2026-10-09 00:00:00', 13, false), ('2026-10-09 00:00:01', 13, true),
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('2026-10-09 00:00:00', 21, false), ('2026-10-09 00:00:01', 21, true),
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('2026-10-09 00:00:00', 22, false), ('2026-10-09 00:00:01', 22, true),
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('2026-10-09 00:00:00', 23, false), ('2026-10-09 00:00:01', 23, true),
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('2026-10-09 00:00:00', 31, false), ('2026-10-09 00:00:01', 31, true),
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('2026-10-09 00:00:00', 32, false), ('2026-10-09 00:00:01', 32, true),
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('2026-10-09 00:00:00', 33, false), ('2026-10-09 00:00:01', 33, true);
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-- Check the plan retains the partitioned left-semi join and hash keys (N=4).
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-- SQLNESS REPLACE (peers.*) peers=REDACTED
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EXPLAIN SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- Every key matches and reports its earliest (false-row) timestamp.
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SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- Reproduce issue 9492 at parallelism 2 with remote dynamic filters enabled.
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-- SQLNESS PROTOCOL MYSQL
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SET query.parallelism = 2;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.parallelism;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.enable_remote_dynamic_filter_pushdown;
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-- SQLNESS REPLACE (peers.*) peers=REDACTED
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-- SQLNESS PROTOCOL MYSQL
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EXPLAIN SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- SQLNESS PROTOCOL MYSQL
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SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- Use one partition as the result control.
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-- SQLNESS PROTOCOL MYSQL
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SET query.parallelism = 1;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.parallelism;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.enable_remote_dynamic_filter_pushdown;
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-- SQLNESS REPLACE (peers.*) peers=REDACTED
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-- SQLNESS PROTOCOL MYSQL
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EXPLAIN SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- SQLNESS PROTOCOL MYSQL
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SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- Keep two partitions and disable remote dynamic filters as the second control.
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-- SQLNESS PROTOCOL MYSQL
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SET query.parallelism = 2;
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-- SQLNESS PROTOCOL MYSQL
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SET query.enable_remote_dynamic_filter_pushdown = false;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.parallelism;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.enable_remote_dynamic_filter_pushdown;
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-- SQLNESS REPLACE (peers.*) peers=REDACTED
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-- SQLNESS PROTOCOL MYSQL
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EXPLAIN SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- SQLNESS PROTOCOL MYSQL
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SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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-- Restore SQLness defaults on the shared session and check its next plan.
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-- SQLNESS PROTOCOL MYSQL
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SET query.parallelism = 4;
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-- SQLNESS PROTOCOL MYSQL
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SET query.enable_remote_dynamic_filter_pushdown = true;
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-- SQLNESS PROTOCOL MYSQL
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SHOW VARIABLES query.enable_remote_dynamic_filter_pushdown;
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-- SQLNESS REPLACE (peers.*) peers=REDACTED
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-- SQLNESS PROTOCOL MYSQL
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EXPLAIN SELECT key_id, MIN(ts) AS first_ts
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FROM merge_semi_data
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WHERE key_id IN (
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SELECT key_id FROM merge_semi_data WHERE is_match = true
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)
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GROUP BY key_id ORDER BY key_id;
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DROP TABLE merge_semi_data;
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