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39 lines
783 B
MySQL
39 lines
783 B
MySQL
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SET use_analyzer = 1;
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EXPLAIN QUERY TREE SELECT 1;
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SELECT '--';
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DROP TABLE IF EXISTS test_table;
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CREATE TABLE test_table
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(
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id UInt64,
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value String
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) ENGINE=TinyLog;
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INSERT INTO test_table VALUES (0, 'Value');
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EXPLAIN QUERY TREE SELECT id, value FROM test_table;
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SELECT '--';
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EXPLAIN QUERY TREE run_passes = 1 SELECT id, value FROM test_table;
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SELECT '--';
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EXPLAIN QUERY TREE SELECT arrayMap(x -> x + id, [1, 2, 3]) FROM test_table;
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SELECT '--';
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EXPLAIN QUERY TREE run_passes = 1 SELECT arrayMap(x -> x + 1, [1, 2, 3]) FROM test_table;
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SELECT '--';
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EXPLAIN QUERY TREE WITH x -> x + 1 AS lambda SELECT lambda(id) FROM test_table;
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SELECT '--';
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EXPLAIN QUERY TREE run_passes = 1 WITH x -> x + 1 AS lambda SELECT lambda(id) FROM test_table;
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DROP TABLE test_table;
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