mirror of
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50 lines
2.1 KiB
SQL
50 lines
2.1 KiB
SQL
DROP TABLE IF EXISTS t;
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DROP TABLE IF EXISTS nt;
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CREATE TABLE t (x String) ENGINE = Log();
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CREATE TABLE nt (x Nullable(String)) ENGINE = Log();
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INSERT INTO t (x) VALUES ('id'), ('1');
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INSERT INTO nt (x) VALUES ('id'), (NULL), ('1');
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SET join_use_nulls = 1;
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SELECT 'on';
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SELECT 'n rj n', t1.x, t2.x FROM nt AS t1 RIGHT JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
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SELECT 'n fj n', t1.x, t2.x FROM nt AS t1 FULL JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
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SELECT 't rj n', t1.x, t2.x FROM t AS t1 RIGHT JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
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SELECT 't fj n', t1.x, t2.x FROM t AS t1 FULL JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
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SELECT 'n rj t', t1.x, t2.x FROM nt AS t1 RIGHT JOIN t AS t2 ON t1.x = t2.x ORDER BY t1.x;
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SELECT 'n fj t', t1.x, t2.x FROM nt AS t1 FULL JOIN t AS t2 ON t1.x = t2.x ORDER BY t1.x;
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SELECT 'using';
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SELECT 'n rj n', t1.x, t2.x FROM nt AS t1 RIGHT JOIN nt AS t2 USING(x) ORDER BY t1.x;
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SELECT 'n fj n', t1.x, t2.x FROM nt AS t1 FULL JOIN nt AS t2 USING(x) ORDER BY t1.x;
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SELECT 't rj n', t1.x, t2.x FROM t AS t1 RIGHT JOIN nt AS t2 USING(x) ORDER BY t1.x;
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SELECT 't fj n', t1.x, t2.x FROM t AS t1 FULL JOIN nt AS t2 USING(x) ORDER BY t1.x;
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SELECT 'n rj t', t1.x, t2.x FROM nt AS t1 RIGHT JOIN t AS t2 USING(x) ORDER BY t1.x;
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SELECT 'n fj t', t1.x, t2.x FROM nt AS t1 FULL JOIN t AS t2 USING(x) ORDER BY t1.x;
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INSERT INTO nt (x) SELECT NULL as x FROM numbers(1000);
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 INNER JOIN nt AS t2 ON t1.x = t2.x;
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 LEFT JOIN nt AS t2 ON t1.x = t2.x;
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 RIGHT JOIN nt AS t2 ON t1.x = t2.x;
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 FULL JOIN nt AS t2 ON t1.x = t2.x;
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 INNER JOIN nt AS t2 USING(x);
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 LEFT JOIN nt AS t2 USING(x);
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 RIGHT JOIN nt AS t2 USING(x);
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SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 FULL JOIN nt AS t2 USING(x);
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DROP TABLE t;
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DROP TABLE nt;
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