mirror of
https://github.com/chaisql/chai.git
synced 2026-04-22 23:07:05 +08:00
Asdine El Hrychy
138 lines
2.4 KiB
SQL
138 lines
2.4 KiB
SQL
-- setup:
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CREATE TABLE foo(a DOUBLE PRIMARY KEY, b DOUBLE);
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CREATE TABLE bar(a DOUBLE PRIMARY KEY, b DOUBLE);
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CREATE TABLE baz(x TEXT PRIMARY KEY, y TEXT);
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INSERT INTO foo (a,b) VALUES (1.0, 1.0), (2.0, 2.0);
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INSERT INTO bar (a,b) VALUES (2.0, 2.0), (3.0, 3.0);
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INSERT INTO baz (x,y) VALUES ("a", "a"), ("b", "b");
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-- test: basic union all
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SELECT * FROM foo
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UNION ALL
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SELECT * FROM bar;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": 2.0, "b": 2.0}
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{"a": 3.0, "b": 3.0}
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*/
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-- test: basic union all with diff fields
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SELECT * FROM foo
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UNION ALL
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SELECT * FROM baz;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": "a", "b": "a"}
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{"a": "b", "b": "b"}
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*/
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-- test: union all with conditions
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SELECT * FROM foo WHERE a > 1
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UNION ALL
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SELECT * FROM baz WHERE x != "b";
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/* result:
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{"a": 2.0, "b": 2.0}
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{"a": "a", "b": "a"}
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*/
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-- test: self union all
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SELECT * FROM foo WHERE a > 1
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UNION ALL
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SELECT * FROM foo WHERE a <= 1;
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/* result:
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{"a": 2.0, "b": 2.0}
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{"a": 1.0, "b": 1.0}
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*/
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-- test: multiple unions all
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SELECT * FROM foo
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UNION ALL
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SELECT * FROM bar
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UNION ALL
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SELECT * FROM baz;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": 2.0, "b": 2.0}
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{"a": 3.0, "b": 3.0}
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{"a": "a", "b": "a"}
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{"a": "b", "b": "b"}
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*/
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-- test: basic union
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SELECT * FROM foo
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UNION
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SELECT * FROM bar;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": 3.0, "b": 3.0}
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*/
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-- test: basic union all with diff fields
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SELECT * FROM foo
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UNION
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SELECT * FROM baz;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": "a", "b": "a"}
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{"a": "b", "b": "b"}
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*/
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-- test: union with conditions
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SELECT * FROM foo WHERE a > 1
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UNION
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SELECT * FROM baz WHERE x != "b";
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/* result:
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{"a": 2.0, "b": 2.0}
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{"a": "a", "b": "a"}
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*/
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-- test: self union
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SELECT * FROM foo
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UNION
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SELECT * FROM foo;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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*/
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-- test: self union with conds
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SELECT * FROM foo WHERE a > 1
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UNION
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SELECT * FROM foo WHERE a <= 1;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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*/
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-- test: multiple unions all
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SELECT * FROM foo
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UNION ALL
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SELECT * FROM bar
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UNION ALL
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SELECT * FROM baz;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": 2.0, "b": 2.0}
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{"a": 3.0, "b": 3.0}
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{"a": "a", "b": "a"}
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{"a": "b", "b": "b"}
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*/
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-- test: combined unions
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SELECT * FROM foo
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UNION
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SELECT * FROM bar
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UNION ALL
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SELECT * FROM baz;
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/* result:
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{"a": 1.0, "b": 1.0}
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{"a": 2.0, "b": 2.0}
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{"a": 3.0, "b": 3.0}
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{"a": "a", "b": "a"}
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{"a": "b", "b": "b"} |