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https://github.com/ClickHouse/ClickHouse.git
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56 lines
2.5 KiB
SQL
56 lines
2.5 KiB
SQL
DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t1 (
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time DateTime,
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foo String,
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dimension_1 String,
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dt Date MATERIALIZED toDate(time),
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dt1 Date MATERIALIZED toDayOfYear(time),
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aliascol1 ALIAS foo || dimension_1,
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time_alias DateTime ALIAS time
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) ENGINE = MergeTree() PARTITION BY toYYYYMM(dt) ORDER BY (dt, foo);
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CREATE TABLE t2 (
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time DateTime,
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bar String,
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dimension_2 String,
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dt Date MATERIALIZED toDate(time),
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dt2 Date MATERIALIZED toDayOfYear(time),
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aliascol2 ALIAS bar || dimension_2,
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time_alias DateTime ALIAS time
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) ENGINE = MergeTree() PARTITION BY toYYYYMM(dt) ORDER BY (dt, bar);
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INSERT INTO t1 VALUES ('2020-01-01 12:00:00', 'fact1', 't1_val1'), ('2020-02-02 13:00:00', 'fact2', 't1_val2'), ('2020-01-01 13:00:00', 'fact3', 't1_val3');
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INSERT INTO t2 VALUES ('2020-01-01 12:00:00', 'fact1', 't2_val2'), ('2020-02-05 13:00:00', 'fact2', 't1_val2'), ('2019-01-01 12:00:00', 'fact4', 't2_val2');
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SELECT * FROM t1 JOIN t2 ON t1.foo = t2.bar WHERE t2.dt >= '2020-02-01';
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SELECT '-';
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SELECT t1.*, t1.dt, t2.*, t2.dt FROM t1 JOIN t2 ON t1.foo = t2.bar WHERE t2.dt >= '2020-02-01';
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SELECT '-';
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SELECT t1.dt, t2.dt FROM t1 JOIN t2 ON t1.foo = t2.bar ORDER BY t1.dt;
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SELECT '-';
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SELECT * FROM t1 ALL JOIN t2 ON t1.dt = t2.dt ORDER BY t1.time, t2.time;
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SELECT '-';
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SELECT * FROM t1 ALL JOIN t2 USING (dt) ORDER BY t1.time, t2.time;
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SELECT '-';
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SELECT * FROM t1 JOIN t2 ON t1.dt1 = t2.dt2 ORDER BY t1.time, t2.time;
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SELECT '-';
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SELECT * FROM t1 JOIN t2 ON t1.foo = t2.bar WHERE t2.aliascol2 == 'fact2t1_val2';
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SELECT '-';
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SELECT t1.aliascol1, t2.aliascol2 FROM t1 JOIN t2 ON t1.foo = t2.bar ORDER BY t1.time, t2.time;
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SELECT '-';
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SELECT t1.time, t2.time FROM t1 JOIN t2 ON t1.aliascol1 = t2.aliascol2 ORDER BY t1.time, t2.time;
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SELECT '-';
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SELECT count() FROM t1 JOIN t2 ON t1.time_alias = t2.time;
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SELECT count() FROM t1 JOIN t2 ON t1.time = t2.time_alias;
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SELECT count() FROM t1 JOIN t2 ON t1.time_alias = t2.time_alias;
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SELECT count() FROM t1 JOIN t2 USING (time_alias);
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SELECT '-';
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SELECT t1.time as talias FROM t1 JOIN t2 ON talias = t2.time;
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SELECT t1.time as talias FROM t1 JOIN t2 ON talias = t2.time_alias;
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SELECT t2.time as talias FROM t1 JOIN t2 ON t1.time = talias;
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SELECT t2.time as talias FROM t1 JOIN t2 ON t1.time_alias = talias;
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SELECT time as talias FROM t1 JOIN t2 ON t1.time = talias; -- { serverError AMBIGUOUS_COLUMN_NAME }
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SELECT time as talias FROM t1 JOIN t2 ON talias = t2.time; -- { serverError AMBIGUOUS_COLUMN_NAME }
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