26 lines
559 B
MySQL
26 lines
559 B
MySQL
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CREATE EXTENSION test_tam_options;
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-- encourage use of parallel plans
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SET parallel_setup_cost = 0;
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SET parallel_tuple_cost = 0;
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SET min_parallel_table_scan_size = 0;
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SET max_parallel_workers_per_gather = 4;
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CREATE TABLE test (i int) USING heap_alter_options;
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INSERT INTO test SELECT i FROM generate_series(1, 10000) i;
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VACUUM ANALYZE test;
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EXPLAIN (costs off)
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SELECT * FROM test;
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ALTER TABLE test SET (enable_parallel = OFF);
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EXPLAIN (costs off)
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SELECT * FROM test;
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ALTER TABLE test SET (enable_parallel = ON);
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EXPLAIN (costs off)
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SELECT * FROM test;
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