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33 lines
1.2 KiB
SQL
33 lines
1.2 KiB
SQL
SET input_format_defaults_for_omitted_fields=1;
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DROP TABLE IF EXISTS defaults;
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CREATE TABLE defaults
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(
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x UInt32,
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y UInt32,
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a DEFAULT x + y,
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b Float32 DEFAULT round(log(1 + x + y), 5),
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c UInt32 DEFAULT 42,
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e MATERIALIZED x + y,
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f ALIAS x + y
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) ENGINE = MergeTree ORDER BY x;
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INSERT INTO defaults FORMAT JSONEachRow {"x":1, "y":1};
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INSERT INTO defaults (x, y) SELECT x, y FROM defaults LIMIT 1;
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INSERT INTO defaults FORMAT JSONEachRow {"x":2, "y":2, "c":2};
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INSERT INTO defaults FORMAT JSONEachRow {"x":3, "y":3, "a":3, "b":3, "c":3};
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INSERT INTO defaults FORMAT JSONEachRow {"x":4} {"y":5, "c":5} {"a":6, "b":6, "c":6};
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SELECT * FROM defaults ORDER BY (x, y);
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ALTER TABLE defaults ADD COLUMN n Nested(a UInt64, b String);
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INSERT INTO defaults FORMAT JSONEachRow {"x":7, "y":7, "n.a":[1,2], "n.b":["a","b"]};
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SELECT * FROM defaults WHERE x = 7 FORMAT JSONEachRow;
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ALTER TABLE defaults ADD COLUMN n.c Array(UInt8) DEFAULT arrayMap(x -> 0, n.a) AFTER n.a;
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INSERT INTO defaults FORMAT JSONEachRow {"x":8, "y":8, "n.a":[3,4], "n.b":["c","d"]};
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INSERT INTO defaults FORMAT JSONEachRow {"x":9, "y":9};
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SELECT * FROM defaults WHERE x > 7 ORDER BY x FORMAT JSONEachRow;
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DROP TABLE defaults;
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