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28 lines
663 B
SQL
28 lines
663 B
SQL
DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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DROP TABLE IF EXISTS t3;
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CREATE TABLE t1 ( `a1` Int64, `1a1` Int64 ) ENGINE = Memory;
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INSERT INTO t1 VALUES (1, 1);
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CREATE TABLE t2 ( `b1` Int64, `1b1` Int64 ) ENGINE = Memory;
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INSERT INTO t2 VALUES (1, 1);
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CREATE TABLE t3 ( `c1` Int64, `1c1` Int64 ) ENGINE = Memory;
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INSERT INTO t3 VALUES (1, 1);
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SELECT
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*
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FROM t1 AS t1
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INNER JOIN t2 AS t2 ON t1.a1 = t2.b1
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INNER JOIN t3 AS t3 ON t1.a1 = t3.c1;
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SELECT t2.`1b1` FROM t1 JOIN t2 ON a1 = b1;
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-- Without quialification it doesn't work:
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-- SELECT `1b1` FROM t1 JOIN t2 ON a1 = b1;
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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DROP TABLE IF EXISTS t3;
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