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ed17997449
* test: migrate join tests Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * chore: update test results after rebasing main branch Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: unstable query sort results and natural_join test Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: count(*) with joining Signed-off-by: Dennis Zhuang <killme2008@gmail.com> * fix: unstable query sort results and style Signed-off-by: Dennis Zhuang <killme2008@gmail.com> --------- Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
79 lines
2.2 KiB
SQL
79 lines
2.2 KiB
SQL
-- Migrated from DuckDB test: test/sql/join/ hash join tests
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-- Tests complex hash join scenarios
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CREATE TABLE large_table_a("id" INTEGER, value_a VARCHAR, num_a INTEGER, ts TIMESTAMP TIME INDEX);
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CREATE TABLE large_table_b("id" INTEGER, value_b VARCHAR, num_b INTEGER, ts TIMESTAMP TIME INDEX);
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INSERT INTO large_table_a VALUES
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(1, 'alpha', 100, 1000), (2, 'beta', 200, 2000), (3, 'gamma', 300, 3000),
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(4, 'delta', 400, 4000), (5, 'epsilon', 500, 5000), (6, 'zeta', 600, 6000),
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(7, 'eta', 700, 7000), (8, 'theta', 800, 8000), (9, 'iota', 900, 9000),
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(10, 'kappa', 1000, 10000);
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INSERT INTO large_table_b VALUES
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(2, 'second', 20, 1000), (4, 'fourth', 40, 2000), (6, 'sixth', 60, 3000),
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(8, 'eighth', 80, 4000), (10, 'tenth', 100, 5000), (12, 'twelfth', 120, 6000),
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(14, 'fourteenth', 140, 7000), (16, 'sixteenth', 160, 8000);
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-- Hash join with exact match
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SELECT
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a."id", a.value_a, a.num_a, b.value_b, b.num_b
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FROM large_table_a a
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INNER JOIN large_table_b b ON a."id" = b."id"
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ORDER BY a."id";
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-- Hash join with multiple key conditions
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SELECT
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a."id", a.value_a, b.value_b
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FROM large_table_a a
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INNER JOIN large_table_b b ON a."id" = b."id" AND a.num_a > b.num_b * 5
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ORDER BY a."id";
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-- Hash join with aggregation on both sides
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SELECT
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joined_data."id",
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joined_data.combined_num,
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joined_data.value_concat
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FROM (
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SELECT
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a."id",
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a.num_a + b.num_b as combined_num,
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a.value_a || '-' || b.value_b as value_concat
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FROM large_table_a a
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INNER JOIN large_table_b b ON a."id" = b."id"
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) joined_data
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WHERE joined_data.combined_num > 500
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ORDER BY joined_data.combined_num DESC;
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-- Hash join with filtering on both tables
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SELECT
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a.value_a, b.value_b, a.num_a, b.num_b
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FROM large_table_a a
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INNER JOIN large_table_b b ON a."id" = b."id"
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WHERE a.num_a > 500 AND b.num_b < 100
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ORDER BY a.num_a DESC;
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-- Hash join for set operations
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SELECT
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a."id",
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'Both Tables' as source,
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a.value_a as value_from_a,
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b.value_b as value_from_b
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FROM large_table_a a
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INNER JOIN large_table_b b ON a."id" = b."id"
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UNION ALL
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SELECT
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a."id",
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'Only Table A' as source,
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a.value_a,
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NULL as value_from_b
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FROM large_table_a a
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LEFT JOIN large_table_b b ON a."id" = b."id"
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WHERE b."id" IS NULL
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ORDER BY "id", source;
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DROP TABLE large_table_a;
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DROP TABLE large_table_b;
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